Year	%
2002	22.66
2003	21.6
2005	23.98
2006	20.78
2007	15.38
2008	12.3
2009	40.48
2010	40.48
2011	32.75
2012	26.19
2013	20.18
2014	25.38
2015	14.39
2016	12.46
2018	34.86
2019	43.8
2020	38.48
2021	36.73