In 2018, 19.70% of the population of the European Union as a whole was at least 65 years old. The median age of all 28 members of the bloc, including the United Kingdom which recently decided to leave, was 43 years in 2019. It was about 29 in the 1950s, when there were just six members: Belgium, France, Germany, Italy, Luxembourg, and the Netherlands. Like all other inhabited continents, Europe saw significant population growth in the late twentieth century. However, Europe's growth is projected to halt by the early 2020s due to falling fertility rates and an aging population. In 2015, a woman living in the European Union had on average 1.5 children, down from 2.6 in 1960. Although the E.U. continues to experience a net influx of immigrants, this is not enough to balance out the low fertility rates. In 2017, the median age was 53.1 years in Monaco, 45 in Germany and Italy, 43 in Greece, Bulgaria, and Portugal, making them some of the oldest countries in the world besides Japan and Bermuda. They are followed by Austria, Croatia, Latvia, Lithuania, Slovenia, and Spain, whose median age was 43.