Year	Percent
1995	0.63348
2000	0.51996
2001	0.46182
2002	0.65812
2003	0.8592
2004	0.98444
2005	1.14541
2006	1.09279
2007	1.12456
2008	1.4155
2009	1.59446
2010	1.5323
2011	1.78535
2012	2.27399
2013	2.51855
2014	3.05279
2015	2.61547
2016	2.79108
2017	4.09884