Year	Percent
1992	1.62655
1993	1.29771
1994	1.83153
1995	1.38166
1996	1.49681
1997	1.46792
1998	1.43203
1999	1.46501
2000	1.40787
2001	1.24832
2002	1.37402
2003	1.14673
2004	0.99375
2005	1.18161
2006	1.07683
2007	1.15918
2008	1.16128
2009	1.16228
2010	1.1634
2011	1.18766
2012	1.33822
2013	1.34577
2014	1.3367
2015	1.31092
2016	1.32802
2017	0.68246
2018	0.70042
2019	0.68056
2020	0.67978