Kenya's population was reported as 47.6 million during the 2019 census compared to 38.6 million inhabitants 2009, 28.7 million in 1999, 21.4 million in 1989, and 15.3 million in 1979. This was an increase of a factor of 2.5 over 30 years, or an average growth rate of more than 3 percent per year. The population growth rate has been reported as reduced during the 2000s, and was estimated at 2.7 percent (as of 2010), resulting in an estimate of 46.5 million in 2016.