Year	%
1993	8.94
1997	12.67
1998	14.64
2001	10.48
2002	12.87
2003	10.55
2005	9.16
2006	9.39
2007	8.66
2008	8.03
2009	8.89
2014	9.97
2015	9.85
2016	10.29
2017	9.79
2018	9.8
2019	9.84
2020	9.84
2021	9.89