Year	Percent
1991	2.204
1992	2.487
1993	1.788
1994	1.631
1995	1.633
1996	1.59
1997	1.556
1998	1.512
1999	1.453
2000	1.122
2001	0.946
2002	1.092
2003	1.058
2004	1.571
2005	1.48
2006	1.277
2007	1.305
2008	1.031
2009	0.987
2010	0.89
2011	0.886
2012	0.694
2013	0.841
2014	0.838
2015	0.729
2016	0.754
2017	0.768
2018	0.753
2019	0.735
2020	0.718
2021	0.7
2022	0.682