Year % of population 2000 5.77355750719653 2001 6.9002368000474 2002 8.03380105661915 2003 9.18928299300623 2004 10.2962854665404 2005 11.4003189633346 2006 12.5133591730452 2007 13.6231338532426 2008 14.7296781474676 2009 15.6887854453424 2010 16.6344855825593 2011 17.4905426246149 2012 18.3120610899828 2013 19.1283172077003 2014 19.9387086027401 2015 20.7429891210084 2016 21.5406409315094 2017 22.3315351941955 2018 23.1152682567655 2019 23.89127864254 2020 24.905978695401 2021 25.0103366822653 2022 25.1147945973608