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.
Sex-selective abortion
Abnormal sex ratios at birth, possibly explained by growing incidence of sex-selective abortion, have also been noted in some other countries outside South and East Asia. According to CIA, the most imbalanced birth sex ratios in Europe (2017) are in Liechtenstein, Armenia, Albania, Azerbaijan, San Marino, Kosovo and Macedonia; with Liechtenstein having the most imbalanced sex ratio in the world.