Year	Percent
2000	1.10878
2001	0.99961
2002	1.07124
2003	1.06601
2004	1.21722
2005	1.69529
2006	1.49331
2007	1.65244
2008	1.9871
2009	1.45573
2010	1.40965
2011	1.08551
2012	0.84911
2013	0.82855
2014	0.77974
2015	0.9518
2016	0.50348
2017	0.45211