ratio of girl and boy in world 2017
Human sex ratio In a study around 2002, the natural sex ratio at birth was estimated to be close to 1.06 males/female.[9] Some scholars suggest that countries considered to have significant practices of prenatal sex-selection are those with birth sex ratios of 108 and above (selection against females) and 102 and below (selection against males). This assumption has been questioned by some scholars.[10]