Year	Percent
2001	100.51467
2002	102.50251
2003	95.7837
2004	94.20233
2005	96.20987
2006	98.29218
2007	96.55957
2008	94.85783
2009	92.52081
2010	92.03649
2011	92.98249
2012	93.16328
2013	97.2505
2014	96.69514
2015	98.48213
2016	96.66801
2017	98.37573