Year	Percent
1992	93.56474
1995	89.43812
1996	95.0565
1999	98.02358
2000	97.3702
2001	102.03883
2003	99.14868
2004	97.62893
2005	97.86312
2006	95.98427
2007	101.42505
2008	95.54123
2009	101.21597
2010	98.27541
2011	104.64091
2012	109.00231
2013	101.52866
2014	100.71283
2015	103.6457
2016	105.953