Year % (cumulative) 2001 9.81485080718994 2002 9.86622619628906 2003 10.0701532363892 2004 10.4971857070923 2005 11.3717346191406 2006 12.5755929946899 2007 12.518593788147 2014 22.7161693572998 2015 21.8670692443848 2016 21.3582191467285 2018 22.3582496643066 2020 22.5288105010986