Year	%
1992	0
1995	31.835
1996	29.02563
1997	35.33154
1998	46.77893
1999	45.55087
2000	37.96777
2001	40.21907
2002	45.50681
2004	36.38877
2005	26.12261
2006	25.98546
2007	25.94596
2008	27.06484
2009	27.1012
2010	28.56503
2011	30.22063
2012	30.09665
2013	30.26465
2014	30.30725
2015	30.05689
2016	30.61536
2017	32.32285
2018	31.68083
2019	31.5715
2020	31.53115
2021	31.24772