Year	%
1990	26.38
1993	23.9
1994	24.51
1997	20.19
1998	11.16
2000	9.72
2001	9.61
2003	9.62
2004	10.57
2005	11.73
2006	11.4
2007	11.08
2008	10.95
2009	10.77
2010	9.79
2011	9.97
2012	9.94
2014	9.33
2015	7.87
2017	10.35
2018	12.06
2019	16.38
2020	8.84
2021	5.73