Year	% of total
1990	99.9999999993039
1995	99.9999999994002
2000	100
2005	100
2010	100
2011	100
2012	100
2013	100
2014	99.9999999999872
2015	99.9988766711252
2016	99.9820753131253
2017	99.9835217097179