Year	Percent
1992	4.92813
1993	3.82495
1994	3.32407
1995	7.21371
1996	5.14338
1997	4.87738
1998	4.82843
1999	5.13286
2000	5.22529
2001	3.70064
2002	3.32731
2003	1.7035
2004	1.62614
2005	1.7257
2006	1.17627
2007	1.09119
2008	1.13763
2009	1.11683
2010	1.12921
2011	1.1468
2012	1.0481
2013	1.05964
2014	1.03111
2015	0.97803
2016	1.01079
2017	0.98645
2018	1.01432
2019	1.01033
2020	1.12843