Year	Percent
1992	4.483
1993	19.068
1994	16.901
1995	7.432
1996	9.4895
1997	11.3155
1998	24.695
2005	7.085
2008	2.3474
2009	2.557
2011	1.2309
2012	5.0082
2013	4.0483
2014	2.1585
2015	1.3835
2016	3.0767
2017	0.7149