Year	Percent
1994	1.03284
1995	3.83633
1996	5.92866
1997	11.07442
1999	2.19576
2000	9.02107
2001	2.00675
2002	3.52224
2003	6.89088
2004	11.28154
2005	8.36701
2006	2.30783
2007	10.57277
2008	3.79165
2009	9.51581
2010	1.26798
2011	26.48074
2012	24.736
2013	13.35483
2014	5.63488
2015	11.61205