Year % (cumulative) 2000 35.3246002197266 2001 35.8626861572266 2002 36.3795509338379 2003 36.070182800293 2004 36.1570892333984 2005 35.1645698547363 2006 35.5693588256836 2007 36.4109802246094 2008 36.5031585693359 2009 38.4042701721191 2010 37.8702812194824 2011 39.4574699401855 2012 40.3199882507324 2013 40.162181854248 2014 39.3711013793945 2015 39.7751083374023 2016 39.7025604248047 2017 40.2781600952148 2018 42.0102996826172 2019 48.554069519043 2020 44.7434387207031 2021 44.2847938537598 2022 44.4346885681152