Year	Percent
1990	3.78238
1995	17.32669
1996	16.70087
1997	16.11194
1998	15.44169
1999	3.2929
2000	3.16341
2009	0.09536
2010	0.09294
2011	0.14615
2012	0.89682
2013	0.47777
2014	0.71367
2015	0.80436
2016	0.77504
2017	0.75283
2018	0.71857
2019	0.69971
2020	0.47694