Year	% of total
1990	99.9999999999186
1995	99.9999999999208
2000	99.9999999999807
2005	99.999999999981
2010	99.999999999981
2011	99.999999999981
2012	99.9999999999811
2013	99.9999999999811
2014	99.9999999999811
2015	99.9999999999811
2016	99.9999999999812
2017	99.9999999999811