Year	%
1992	0
1995	32.31516
1996	29.31303
1997	35.90826
1998	47.72727
1999	46.47375
2000	38.93734
2001	41.45357
2002	46.62154
2004	37.73622
2005	27.24865
2006	27.00064
2007	27.05101
2008	28.34686
2009	28.33931
2010	29.93427
2011	31.64231
2012	31.34674
2013	31.35985
2014	31.41091
2015	31.11087
2016	31.68534
2017	33.41722
2018	32.79403
2019	32.67207
2020	32.72764
2021	32.41769