<Tr> <Td> 7--8 children 6--7 children </Td> <Td> 5--6 children 4--5 children </Td> <Td> 3--4 children 2--3 children </Td> <Td> 1--2 children 0--1 children </Td> </Tr> <P> In 2017, the estimated annual growth rate was 1.1% . The CIA World Factbook gives the world annual birthrate, mortality rate, and growth rate as 1.86%, 0.78%, and 1.08% respectively . The last 100 years have seen a massive fourfold increase in the population, due to medical advances, lower mortality rates, and an increase in agricultural productivity made possible by the Green Revolution . </P> <P> The annual increase in the number of living humans peaked at 88.0 million in 1989, then slowly declined to 73.9 million in 2003, after which it rose again to 75.2 million in 2006 . In 2017, the human population increased by 83 million . Generally, developed nations have seen a decline in their growth rates in recent decades, though annual growth rates remain above 2% in poverty - stricken countries of the Middle East and Sub-Saharan Africa, and also in South Asia, Southeast Asia, and Latin America . </P> <P> In some countries the population is declining, especially in Eastern Europe, mainly due to low fertility rates, high death rates and emigration . In Southern Africa, growth is slowing due to the high number of AIDS - related deaths . Some Western Europe countries might also experience population decline . Japan's population began decreasing in 2005; it now has the highest standard of living in the world . </P>

When did the world's population increased the fastest