Year	Percent
1999	94.90099
2000	98.39069
2001	106.10086
2002	103.50358
2003	106.63695
2004	97.68484
2005	91.67086
2006	93.93862
2007	92.29971
2008	94.60026
2009	95.74749
2010	95.61658
2011	98.21896