Year	%
1993	15.44
1997	16.93
1998	17.26
2001	15.16
2002	12.99
2003	11.97
2005	10.23
2006	9.93
2007	9.63
2008	9.2
2009	9.36
2014	8.35
2015	8.27
2016	8.85
2017	9.38
2018	9.98
2019	9.99
2020	10.16
2021	10.29