Year % (cumulative) 2000 29.9960079193115 2001 30.3132305145264 2002 31.0050430297852 2003 30.8269157409668 2004 30.7632904052734 2005 31.1192417144775 2006 31.2193508148193 2007 32.0520896911621 2008 32.7596702575684 2009 35.0115394592285 2010 34.950870513916 2011 36.3560485839844 2012 38.0242118835449 2013 38.5071487426758 2014 37.9565505981445 2015 39.0218696594238 2016 39.6356086730957 2017 40.6208381652832 2018 42.6016883850098 2019 48.7687110900879 2020 45.9041709899902 2021 46.231819152832 2022 46.8563003540039