Year	Percent
1992	93.92244
1995	89.16447
1996	95.67039
1999	98.93544
2000	100.03341
2001	100.81809
2003	97.27328
2004	97.69423
2005	98.51152
2006	97.52193
2007	99.06199
2008	94.95664
2009	99.73688
2010	100.78125
2011	104.00569
2012	108.09913
2013	101.72458
2014	102.12578
2015	104.40428
2016	105.67742