By Liberty McArtor, The Stream - According to the Center for Disease Control and Prevention, the fertility rate is currently at 1.77 births per woman over her lifetime. This is based on the General Fertility Rate (GFR), which measures fertility rates based on the annual number of births. That rate has dropped 3.8 percent since 2015, and 16.4 percent since 2007. In 2007, the fertility rate was 2.12. Developed countries have a replacement rate of about 2.1.