Year	Percent
1990	90.21138
1993	77.6609
1999	94.26124
2000	95.31918
2001	94.33343
2002	90.68393
2003	95.02249
2004	99.55979
2005	103.2419
2006	98.93078
2008	92.2587
2009	93.20701
2010	94.76847
2011	97.94246
2012	95.40959
2015	93.901
2016	91.77967