Year	Percent
1990	90.26441
1993	79.34814
1999	94.96573
2000	96.17222
2001	94.5472
2002	90.34569
2003	94.47715
2004	98.8684
2005	102.42033
2006	98.81322
2008	91.15259
2009	93.10055
2010	94.56179
2011	96.94567
2012	93.87207
2015	92.94991
2016	92.14678