Between 1961 and 1971 it increased by 43% from 2,300 to 3,300 and has continued to grow ever since, although at a slower rate.
Между 1961 и 1971 оно увеличилось на 43 % с 2300 до 3300 и продолжает расти с тех пор, хотя и более медленными темпами.