The total fertility rate (TFR) in 2018 was estimated at 1.61 children born/woman, which is lower than the replacement rate of 2.1. In 2012, 45.0% of births were to unmarried women. The life expectancy in 2013 was estimated at 73.19 years (68.13 years male, 78.53 years female). As of 2015, Latvia is estimated to have the lowest male-to-female ratio in the world, at 0.85 males/female. In 2017, there were 1,054,433 females and 895,683 males living in Latvian territory. Every year, more boys are born than girls. Until the age of 39, there are more males than females. From the age of 70, there are 2.3 times as many females as males.