Year	%
2000	13.07
2006	17.75
2008	18.34
2009	18.27
2010	18.73
2011	19.3
2012	17.88
2013	17.49
2014	17.01
2015	16.28
2016	15.73
2017	15.87
2018	15.66
2019	16.02
2020	15.23
2021	18.57