Year	%
1993	2.67
1996	7.26
1998	37.36
1999	30.61
2000	39.01
2001	18.86
2003	29.43
2004	33.16
2005	33.98
2006	27.6
2007	30.02
2008	23.44
2009	19.92
2010	17.49
2011	16.59
2012	15.82
2013	15.65
2014	15.9
2015	16.1
2016	16.43
2017	17.91
2019	17.97
2021	19.22