Year	Percent
1995	3.73462
1996	5.19709
1997	4.33534
1998	5.36293
1999	4.41637
2000	1.43744
2001	0.47897
2002	0.26548
2003	0.3244
2004	0.47399
2005	0.75007
2006	0.37857
2007	0.35592
2008	0.77183
2009	4.13401
2010	2.01884
2011	2.28219
2012	0.55841
2013	1.5194
2014	1.25603
2015	0.82804
2016	2.20825
2017	1.40278