Year	Percent
1995	29.27351
1996	27.48428
1997	25.96379
1998	25.76809
1999	24.8811
2000	25.40932
2001	22.42004
2002	21.02183
2003	18.3282
2004	17.58674
2005	16.3998
2006	14.49888
2007	9.98297
2008	8.81093
2009	8.49746
2010	11.16126
2011	11.38425
2012	10.44817
2013	11.55036
2014	14.07096
2015	12.82126
2016	12.47974
2017	12.19959
2018	10.14688
2019	10.16081
2020	9.36669
2021	10.58659
2022	8.29326