Instruct: Given a question, retrieve documents that answer the question.
Query: What country has the highest birth rate?
As of 2017, Niger has the highest birth rate in the world with 49.443 per thousand people. 
Japan has one of the lowest birth rates in the world with 8 per thousand people.
While in Japan there are 126 million people and in Niger 21 million, both countries had around 1 million babies born in 2016.
In the United States, the birth rate is 105 sons to 100 daughters which has been the natural birth rate since the 18th century. About 80 percent of prospective adoptive parents from the US will choose a girl over a boy. In fertility clinics that enable sex preferences, daughters are usually preferred over sons. In the traditions of various Abrahamic religions, Luluwa is regarded as the first daughter to have ever existed.
The United States has a birth rate of 13 per 1,000, which is 5 births below the world average. Its population growth rate is positive at 0.7%, higher than that of many developed nations. In fiscal year 2016, over one million immigrants (most of whom entered through family reunification) were granted legal residence. Mexico has been the leading source of new residents since the 1965 Immigration Act. China, India, and the Philippines have been in the top four sending countries every year since the 1990s. , approximately 11.4 million residents are illegal immigrants. , 47% of all immigrants are Hispanic, 26% are Asian, 18% are white and 8% are black. The percentage of immigrants who are Asian is increasing while the percentage who are Hispanic is decreasing. The estimated number of illegal immigrants dropped to 10.7 million in 2017, down from a peak of 12.2 million in 2007. In 2017, 33,000 refugees were resettled in the United States. This was fewer than were resettled in the rest of the world for the first time in decades.
A 2017 Gallup poll concluded that 4.5% of adult Americans identified as LGBT with 5.1% of women identifying as LGBT, compared with 3.9% of men. The highest percentage came from the District of Columbia (10%), while the lowest state was North Dakota at 1.7%.
China has four times the population of the U.S., within roughly the same area. With 1.3 billion inhabitants, 20% of the world’s population lives in China. While the rate of population growth has been declining for decades, the total number of inhabitants has been growing and is expected to do so through 2030. China’s urban population is growing rapidly; between 1950 and 2009, the percentage of the population living in urban areas quadrupled from 14% to 48%. Meanwhile, the rural population is declining, opening the landscape in areas that are not urbanized. The forests and farming land of eastern China support far more people and major cities than do the grasslands, deserts, and high mountain regions of the west.
The U.S. teenage pregnancy rate is 26.5 per 1,000 women. The rate has declined by 57% since 1991. In 2013, the highest teenage birth rate was in Alabama, and the lowest in Wyoming. Abortion is legal throughout the U.S., owing to "Roe v. Wade", a 1973 landmark decision by the Supreme Court of the United States. While the abortion rate is falling, the abortion ratio of 241 per 1,000 live births and abortion rate of 15 per 1,000 women aged 15–44 remain higher than those of most Western nations. In 2013, the average age at first birth was 26 and 40.6% of births were to unmarried women.
In the 2011 census, Nepal's population was approximately 26 million people with a population growth rate of 1.35% and a median age of 21.6 years. In 2016, the female median age was approximately 25 years old and the male median age was approximately 22 years old. Only 4.4% of the population is estimated to be more than 65 years old, comprising 681,252 females and 597,628 males. 61% of the population is between 15 and 64 years old, and 34.6% is younger than 14 years. In 2011, the Birth rate is estimated to be 22.17 births per 1,000 people with an infant mortality rate of 46 deaths per 1,000 live births. Compared to the infant mortality rate in 2006 of 48 deaths per 1000 live births, the 2011 IMR is a slight decrease within that 5-year period. Infant mortality rate in Nepal is higher in rural regions at 44 deaths per 1000 live births, whereas in urban regions the IMR is lower at 40 deaths per 1000 live births. This difference is due to a lack of delivery assistance services in rural communities compared to their urban counterparts who have better access to hospitals and neonatal clinics. Life expectancy at birth is estimated to be 67.44 years for females and 64.94 years for males. The mortality rate is estimated to be 681 deaths per 100,000 people. Net migration rate is estimated to be 61 migrants per 100,000 people. According to the 2011 census, 65.9% of the total population is literate.
Having children later was not exceptional in the past, when families were larger and women often continued bearing children until the end of their reproductive age. What is so radical about this recent transformation is that it is the age at which women give birth to their first child which is becoming comparatively high, leaving an ever more constricted window of biological opportunity for second and subsequent children, should they be desired. Unsurprisingly, high first-birth ages and high rates of birth postponement are associated with the arrival of low, and lowest-low fertility.
Due in large part to the dramatic reduction in the risk of unwanted pregnancy engendered by the introduction of the Pill in 1960, not to mention the legalization of contraception nationwide by the Supreme Court decision in "Griswold v. Connecticut" in 1965, along with the steadily increasing acceptance of abortion and delayed marriages for career-minded young women influenced by second-wave feminism, or the chic rejection of the responsibilities of marriage altogether in favor of living together without raising a family, U.S. birthrates fell below replacement level starting in 1965 and remained depressed for almost 20 years; thus, children born during this period became known, at least in the popular press, as "baby busters" (as opposed to the "baby boomers" of the postwar years). Birthrates hit an all-time low during the post-OPEC recession in the mid-1970s.
Every year, an estimated 342,900 women die from complications of pregnancy and childbirth, 99% of these deaths occur in developing countries. Worldwide, for every 100,000 live births, about 251 women die. In some industrialized countries such as the U.S, this is 13 deaths for every 100,000 live babies born with American women having a lifetime risk of 1 in 2,100 of dying from childbirth related complications. However, in some countries, such as Afghanistan up to 1,600 women die for every 100,000 live births and women have a 1 in 11 lifetime risk of maternal death.
The United States averages about 1,200 tornadoes per year, followed by Canada, averaging 62 reported per year. NOAA's has a higher average 100 per year in Canada. The Netherlands has the highest average number of recorded tornadoes per area of any country (more than 20, or 0.0013 per sq mi (0.00048 per km), annually), followed by the UK (around 33, or 0.00035 per sq mi (0.00013 per km), per year), although those are of lower intensity, briefer and cause minor damage.
Tornadoes kill an average of 179 people per year in Bangladesh, the most in the world. Reasons for this include the region's high population density, poor construction quality, and lack of tornado safety knowledge. Other areas of the world that have frequent tornadoes include South Africa, the La Plata Basin area, portions of Europe, Australia and New Zealand, and far eastern Asia.
China is the most populated country in the world and its national population density (137/km) is similar to those of Switzerland and the Czech Republic. The overall population density of China conceals major regional variations, the western and northern part have a few million people, while eastern half has about 1.3 billion. The vast majority of China's population lives near the east in major cities.
In the 11 provinces, special municipalities, and autonomous regions along the southeast coast, population density was 320.6 people per km.
A study of a population of French women from 1670 and 1789 shows that those who married at age 20–24 had 7.0 children on average and 3.7% remained childless. Women who married at age 25–29 years had a mean of 5.7 children and 5.0% remained childless. Women who married at 30–34 years had a mean of 4.0 children and 8.2% remained childless. The average age at last birth in natural fertility populations that have been studied is around 40.
Finland numbers some 5.5 million people and has an average population density of 17 inhabitants per square kilometre. There has not been any remarkable growth in the number of population since the inception of modern Finland. This makes it the third most sparsely populated country in Europe, after Iceland and Norway. Population distribution is very uneven: the population is concentrated on the small southwestern coastal plain. About 85% live in towns and cities, with one million living in the Helsinki Metropolitan Area alone. In Arctic Lapland, on the other hand, there are only 2 people to every square kilometre.
New York City is the most populous city in the United States, with an estimated record high of 8,622,698 residents , incorporating more immigration into the city than outmigration since the 2010 United States Census. More than twice as many people live in New York City as in the second-most populous U.S. city (Los Angeles), and within a smaller area. New York City gained more residents between April 2010 and July 2014 (316,000) than any other U.S. city. New York City's population is about 43% of New York State's population and about 36% of the population of the New York metropolitan area.
The indigenous population of Mexico has in recent decades increased both in absolute numbers as-well as a percentage of the population. This is largely due to increased self-identification as indigenous, as-well as indigenous women having higher birth rates as compared to the Mexican average. Indigenous peoples are more likely to live in more rural areas, than the Mexican average, but many do reside in urban or suburban areas, particularly, in the central states of Mexico, Puebla, Tlaxcala, the Federal District and the Yucatán Peninsula.
Eighteen is the most common voting age, with a small minority of countries differing from this rule. Those with a national minimum age of 17 include East Timor, Greece, Indonesia, North Korea, South Sudan and Sudan. The minimum age is 16 in Argentina, Austria, Brazil, Cuba, Ecuador, Nicaragua and the Isle of Man, Jersey and Guernsey (three self-governing British Crown Dependencies). People aged 16–18 can vote in Bosnia, Serbia and Montenegro if employed. The highest minimum voting age is 21 in several nations. Some countries have variable provision for the minimum voting age, whereby a lower age is set for eligibility to vote in state, regional or municipal elections.
Ethiopia's population has grown from 33.5 million in 1983 to 87.9 million in 2014. The population was only about 9 million in the 19th century. The 2007 Population and Housing Census results show that the population of Ethiopia grew at an average annual rate of 2.6% between 1994 and 2007, down from 2.8% during the period 1983–1994. Currently, the population growth rate is among the top ten countries in the world. The population is forecast to grow to over 210 million by 2060, which would be an increase from 2011 estimates by a factor of about 2.5.
The number of children born to one woman can vary dependent on her window from menarche to menopause. The average window of fertility is from 13.53 to 49.24. Taking into consideration lactational amenorrhea and the period between conception and birth, the average woman is capable of experiencing around 20 births. However, if the duration of lactation is cut short due to use of a formula substitute or the woman has multiple births, the number of offspring could exceed 20.
Thailand's successful government-sponsored family planning program has resulted in a decline in population growth from 3.1 percent in 1960 to around 0.4 percent in 2015. The World Bank forecasts a contraction of the working-age population of about 10 percent between 2010 and 2040. In 1970, an average of 5.7 people lived in a Thai household. At the time of the 2010 census, the figure was down to 3.2. Even though Thailand has one of the better social security systems in Asia, the increasing population of elderly people is a challenge for the country.
Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It is the largest country in Oceania and the world's sixth-largest country by total area. The neighbouring countries are Papua New Guinea, Indonesia and East Timor to the north; the Solomon Islands and Vanuatu to the north-east; and New Zealand to the south-east. The population of / 1000000 round 0 million is highly urbanised and heavily concentrated on the eastern seaboard. Australia's capital is Canberra, and its largest city is Sydney. The country's other major metropolitan areas are Melbourne, Brisbane, Perth and Adelaide.
Female fertility declines after age 30 and ends with the menopause. Female physical experiences vary depending on external forces such as diet, marriage patterns, culture, and other aspects. In Western nations menstruation begins to affect females at 13 and menopause starts around 51. In non-industrialized countries, on the other hand, most females begin menstruation at a later age. More lactation in the lifetime of non-western females inhibits ovulation and extends the number of fertile years. Pregnancy in the 40s or later has been correlated with increased risk of Down syndrome in the children. Males are capable of fathering children into old age. Paternal age effects in the children include multiple sclerosis, autism, breast cancer and schizophrenia, as well as reduced intelligence. Adriana Iliescu was reported as the world's oldest woman to give birth, at age 66. Her record stood until Maria del Carmen Bousada de Lara gave birth to twin sons at Sant Pau Hospital in Barcelona, Spain on December 29, 2006, at the age of 67. In both cases IVF was used. The oldest known father was former Australian miner Les Colley, who fathered a child at age 93.
Birth rates vary even within the same geographic areas. In Europe, as of July 2011, Ireland's birth rate is 16.5 per cent, which is 3.5 per cent higher than the next-ranked country, the UK. France has a birth rate of 12.8 per cent while Sweden is at 12.3 per cent. In July 2011, the UK's Office for National Statistics (ONS) announced a 2.4% increase in live births in the UK in 2010 alone. This is the highest birth rate in the UK in 40 years. By contrast, the birth rate in Germany is only 8.3 per 1,000, which is so low that both the UK and France, which have significantly smaller populations, produced more births in 2010. Birth rates also vary within the same geographic area, based on different demographic groups. For example, in April 2011, the U.S. CDC announced that the birth rate for women over the age of 40 in the U.S. rose between 2007 and 2009, while it fell among every other age group during the same time span. In August 2011, Taiwan's government announced that its birth rate declined in the previous year, despite the fact that it implemented a host of approaches to encourage its citizens to have babies.
Afghanistan has the 11th highest birth rate in the world, and also the highest birth rate of any non-African country (as of 2016). The rapid population growth of Afghanistan is considered a problem by preventing population stabilization, and affecting maternal and infant health. Reasons for large families include tradition, religion, the low status of women and the cultural desire to have several sons.
There is much variation regarding birth weight within continents, countries, and cities. Even though over 20 million babies are born each year with low birth weight, it is hard to know the exact number as more than half of babies born in the world are not weighed at birth. The baby’s weight is an indicator of the mother and babies health. In 2013 22 million newborns had low birth weight, around 16 percent of all babies globally. Data on low birth weight is adjusted to account for under reporting. South Asia has the highest rate of babies not weighted at birth with 66 percent, but also have the highest low birth weight at 28 percent worldwide. West and Central Africa and least developed countries are next with 14 percent low birth weight worldwide.
In 2013, the lowest birth rates were reported in the Northeast, while the highest rates were located in the south east. For example, a 2001 study by UNICEF found that the US teenage birth rate was the highest among 28 OECD nations in the review; in a 1999 comparison by the Guttmacher Institute, U.S. teen pregnancy and teen birth rates were the second-highest among the 46 developed countries studied. In 2002, the U.S. was rated 84th out of 170 World Health Organization member countries based on teenage fertility rate.