Year	Percent
1997-12-31	7.2275
1998-12-31	5.274
1999-12-31	3.0423
2000-12-31	4.3589
2001-12-31	4.9451
2002-12-31	4.824
2003-12-31	3.2895
2004-12-31	4.8016
2005-12-31	4.7627
2006-12-31	5.201
2007-12-31	5.7799
2008-12-31	1.5373
2009-12-31	0.4434
2010-12-31	0.5564
2011-12-31	0.4578
2012-12-31	0.4275
2013-12-31	0.3057
2014-12-31	0.3565
2015-12-31	0.3475
2016-12-31	0.1618
2017-12-31	0.4123
2018-12-31	0.6998
2019-12-31	0.7098
2020-12-31	0.0394
2021-12-31	0.1906
2022-12-31	3.4282
2023-12-31	5.1869