Year	%
1990	13.22
1993	14.75
1995	16.77
1996	11.39
1997	5.86
1998	5.35
1999	5.02
2000	4.46
2001	4.38
2002	4.33
2003	4.82
2004	4.3
2005	4.37
2006	4.41
2007	3.92
2008	3.92
2009	3.97
2010	3.44
2011	4.07
2012	2.67
2013	4.07
2014	4.11
2015	2.92
2016	2.89
2017	3.34
2018	3.42
2019	7.77
2020	3.29
2021	3.27