Year	Percent
1992	0.38705
1993	0.67443
1994	0.54952
1995	0.78062
1996	0.79598
1997	0.91232
1998	1.05853
1999	1.13563
2000	1.12113
2001	1.0945
2002	1.23672
2003	1.1989
2004	0.88538
2005	1.18803
2006	1.01011
2007	1.01323
2008	1.00566
2009	0.79108
2010	0.84203
2011	0.83622
2012	0.84076
2013	0.84501
2014	0.8514
2015	0.93713
2016	0.92609
2017	0.86014
2018	0.95437
2019	0.99955
2020	0.99966