Year	Percent
1979-12-31	12.48
1980-12-31	14.81
1981-12-31	12.27
1982-12-31	8.52
1983-12-31	9.66
1984-12-31	8
1985-12-31	7.11
1986-12-31	5.85
1987-12-31	5.91
1988-12-31	8.38
1989-12-31	7.92
1990-12-31	6.62
1991-12-31	3.86
1992-12-31	3.06
1993-12-31	2.98
1994-12-31	5.46
1995-12-31	4.961
1996-12-31	5.15
1997-12-31	5.36
1998-12-31	4.53
1999-12-31	5.38
2000-12-31	5.73
2001-12-31	1.71
2002-12-31	1.2
2003-12-31	0.93
2004-12-31	2.18
2005-12-31	3.92
2006-12-31	4.89
2007-12-31	3.29
2008-12-31	0.11
2009-12-31	0.06
2010-12-31	0.15
2011-12-31	0.02
2012-12-31	0.05
2013-12-31	0.07
2014-12-31	0.04
2015-12-31	0.16
2016-12-31	0.5
2017-12-31	1.37
2018-12-31	2.35
2019-12-31	1.54
2020-12-31	0.08
2021-12-31	0.06
2022-12-31	4.34
2023-12-31	5.25