Year	Percent
1999	93.88949
2000	93.2224
2001	92.65848
2002	92.36645
2003	90.13408
2004	92.9648
2005	97.58761
2006	101.37139
2007	96.05342
2008	94.75887
2009	98.06992
2010	96.95369
2011	95.0588
2012	96.38458
2013	101.26542
2014	105.73331
2015	112.51425
2016	105.06771