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.
List of countries by number of births
The following list sorts countries by the total projected number of births. The list is sourced from the United Nations World Population Prospects. Figures are from the 2017 revision of the United Nations World Population Prospects report, for the period 2015–2020, using the medium assumption. All figures are rounded and given in thousands.