Year	Percent
1999	102.5
2000	97.12557
2001	100.14577
2002	99.71989
2003	88.14016
2004	88.32685
2005	88.5101
2006	91.85464
2007	97.8233
2008	98.03665
2009	94.00799
2010	97.84076
2013	101.25523
2014	101.55587