Year	%
1993	99.05383
1995	48.77982
1996	100
1998	97.64329
1999	96.8928
2000	99.43027
2001	99.19159
2002	98.52884
2003	99.06929
2004	99.65454
2005	100
2006	98.77321
2007	100
2008	99.81759
2009	98.3953
2010	99.15753
2011	98.48709
2012	100
2013	98.29169
2014	100
2015	99.7006
2016	95.48102
2017	100