Year % (cumulative) 2004 27.2470703125 2005 28.7737293243408 2006 29.7278099060059 2007 30.0322494506836 2008 32.4833297729492 2009 33.8577117919922 2010 36.5570182800293 2011 38.6385498046875 2012 39.5948905944824 2013 40.5634994506836 2014 42.0801086425781 2015 43.8440589904785 2016 44.2350616455078 2017 45.5688591003418 2018 39.5276832580566 2019 48.5053901672363 2020 42.1602630615234 2021 43.4265098571777 2022 44.8489074707031