Year	Percent
1994	7.79151
1995	22.25953
1996	23.94934
1997	18.90654
1998	29.44743
1999	10.88576
2000	13.3767
2001	13.95905
2002	20.22242
2003	16.84165
2004	18.18941
2005	25.3165
2006	21.12753
2007	33.35893
2008	20.21504
2009	25.54597
2010	17.68764
2011	23.17329
2012	23.98109
2013	16.81484
2014	12.66491
2015	10.99994
2016	13.08155