Year	%
1996	18.77
1999	23.33
2000	19.98
2001	32.03
2002	41.45
2003	42.77
2004	37.39
2006	19.47
2007	34.2
2010	21.51
2011	12.42
2012	7.87
2013	17.69
2020	28.5
2021	27.99