Year % of population 2000 4.4 2001 9.3 2002 14.1 2003 19 2004 23.8 2005 28.7 2006 33.5 2007 38.4 2008 42.4 2009 48.3 2010 42.7 2011 43.2 2012 69.1 2013 68 2014 89.5 2015 71.5 2016 97.7 2017 97.7 2018 93.4 2019 97.7 2020 97.7 2021 97.7 2022 85.3