Year	%
1993	6.37
1995	9.57
1996	14.1
1997	14.56
1998	14.01
1999	16.09
2000	14.32
2001	12.3
2002	11.5
2003	11.59
2004	12.85
2005	12.69
2006	12.58
2007	13.66
2008	13.07
2009	13.7
2010	14.3
2011	13.83
2013	14
2015	15.73
2016	14.46
2017	14.43
2018	13.18
2019	20.69
2020	19.82
2021	22.91