Year % of population 2000 39.7549317359306 2001 41.9233301407199 2002 44.1504896144072 2003 46.4369382359771 2004 48.7832040844152 2005 51.1898152387058 2006 53.6681380607655 2007 56.1668865742232 2008 58.7301393522817 2009 61.4769764411353 2010 64.2842786343284 2011 67.1524981301922 2012 70.0820894713963 2013 73.0735095449517 2014 76.1272175822102 2015 79.2436751588638 2016 80.9741144735462 2017 82.0133130633235 2018 83.0564842937658 2019 83.4594663975543 2020 83.6457425444478 2021 83.8301013413023 2022 84.0414422543287