Year % (cumulative) 2003 21.9830360412598 2004 22.32643699646 2005 23.001501083374 2006 23.920503616333 2007 24.768159866333 2008 25.6736679077148 2009 26.5173301696777 2010 24.3577404022217 2011 27.39892578125 2012 27.8424549102783 2013 28.7843112945557 2014 30.086555480957 2015 28.6821708679199 2016 31.7693634033203 2017 32.154483795166 2018 33.0220794677734 2019 33.6001853942871 2020 33.8704376220703 2021 34.2422485351562 2022 34.5359725952148