Year	%
1993	44.49336
1997	51.98045
1998	50.5245
2001	50.7981
2002	42.32887
2003	41.15364
2005	40.80536
2006	40.02033
2007	39.9162
2008	60.5801
2009	53.3737
2014	44.97395
2015	45.00845
2016	45.11365
2017	46.2756
2018	33.20832
2019	33.40194
2020	33.62692
2021	34.04137