Year	%
1994	40.9889297513909
1995	39.2284503550999
1996	36.8467952418462
1997	32.1123769091511
1998	35.2336645039975
1999	34.9110383564278
2000	30.9509227779
2001	32.6516922603125
2002	44.673181710321
2003	57.7716539539778
2004	38.7663435403788
2005	34.5661785164844
2006	34.8353701433139
2007	28.9207415504089
2008	29.8251032768361
2009	32.6561648356508
2010	30.0888812718225
2011	17.3980540247749
2012	17.1584673198116
2013	19.2705731491781
2014	21.1860677808059
2015	19.7358561814464
2016	18.0748565194157
2017	16.981885972602
2018	15.7177063917515
2019	15.4842638363204
2020	13.5373144065709
2021	12.5097388657844