Year	Percent
1993	93.08098
1994	92.39521
1995	93.84632
1996	93.49372
1997	94.97057
1998	99.24599
1999	99.36481
2000	96.30236
2001	96.45866
2002	96.61421
2003	101.68556
2004	113.61881
2008	96.6227
2009	95.63865
2010	96.75503
2011	95.85883
2012	101.42976
2013	98.73877
2014	99.49526
2015	97.51605