Year	Percent
1986	30.26
1987	18.45
1995	3.33
2009	1.55
2011	0.83
2012	0.8
2013	0.62
2014	0.54
2015	0.51
2016	0.79
2017	0.67
2018	0.5
2019	0.83
2020	2.08