Year	% of total
1990	61.1248793248221
1995	56.6873178698812
2000	38.1037581904851
2005	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	90.1172991022418
2016	2.0858457644857
2017	17.2346667886304