The researchers were surprised by this finding, as the study also shows that fertility is still in the developing world.

The research on birth, fatalities and illnesses, prepared by the IHME Research Institute on the basis of country data, surprisingly showed that the growth of the world's population, which increased from 2.6 billion people between 1950 and 2017 to dizziness 7.6 billion, extremely unequal, by region and revenue. For the survey, which is one of the most valuable reviews of global public health, IHME has examined 8,000 data sources, of which 600 are new.

The institute, founded by the Bill Foundation and Melinda Gates at the University of Washington, found that 91 countries, mainly in Europe and North and South America, do not have enough birth to preserve the current population. The smallest country of birth in Europe is Cyprus, as there is only one child born there. In Slovenia, according to the tables, IHME produces an average of 1.5 children. On the other hand, fertility continued to grow between 1950 and 2017 in Africa and Asia.