Year	%
1995	100
2000	97.59525
2006	97.79186
2007	98.36145
2008	100
2009	98.33455
2010	99.27686
2011	99.4729
2012	99.48293
2013	99.83714
2014	99.11144
2015	97.82632
2016	98.41017
2017	98.47478