Year	Percent
1999	100.76104
2000	97.15994
2001	88.69565
2002	89.80447
2003	92.2973
2004	92.81046
2005	87.88265
2006	94.53621
2007	93.35888
2008	92.27799
2009	98.43342
2010	91.78808
2013	92.03779
2014	100.81855