Year	%
1990	91.85428
1992	91.91019
1995	92.68723
1998	92.61498
2000	75.58994
2002	72.01492
2003	62.81546
2004	68.64011
2005	51.70929
2006	56.82647
2008	58.71945
2009	70.38596
2010	46.11968
2011	64.91371
2012	62.54628
2013	47.98799
2015	47.3092
2016	63.88765