Year	Percent
1994	94.03521
1995	92.08797
1999	90.24163
2000	90.43287
2001	92.27672
2007	90.73075
2008	93.31538
2009	98.29654
2011	96.91036
2012	97.95481
2013	100.49315
2014	100.39783
2015	101.21725