Birth rate
The region of Sub-Saharan Africa has the highest birth rate in the world. As of 2016, Niger, Mali, Uganda, Zambia, and Burundi have the highest birth rates in the world. This is part of the fertility-income paradox, as these countries are very poor, and it may seem counter-intuitive for families there to have so many children. The inverse relationship between income and fertility has been termed a "demographic-economic "paradox"" by the notion that greater means would enable the production of more offspring as suggested by the influential Thomas Malthus.
Prevalence of teenage pregnancy
Nordic countries, such as Denmark and Sweden, also have low rates of teenage birth (both have 7 births per 1,000 women aged 15–19 in 2002). However, Norway's birth rate is slightly higher (11 births per 1,000 women aged 15–19 in 2002) and Iceland has a birth rate of 19 per 1,000 women aged 15–19 (nearly the same as the UK). These countries have higher abortion rates than the Netherlands.