Table 6.
Year | Percentage | Year | Percentage | Year | Percentage | Year | Percentage | Year | Percentage |
---|---|---|---|---|---|---|---|---|---|
1986 | 1.4 | 1993 | 2.2 | 2000 | 0.9 | 2007 | 2.1 | 2014 | 1.6 |
1987 | 1.5 | 1994 | 2.0 | 2001 | 1.3 | 2008 | 2.1 | 2015 | 1.7 |
1988 | 1.4 | 1995 | 2.1 | 2002 | 1.5 | 2009 | 2.2 | 2016 | 1.5 |
1989 | 1.9 | 1996 | 1.8 | 2003 | 2.0 | 2010 | 2.2 | 2017 | 1.2 |
1990 | 1.9 | 1997 | 1.0 | 2004 | 2.2 | 2011 | 1.7 | 2018 | 1.2 |
1991 | 2.2 | 1998 | 0.9 | 2005 | 2.4 | 2012 | 1.7 | 2019 | 1.1 |
1992 | 1.9 | 1999 | 1.1 | 2006 | 2.2 | 2013 | 1.6 | 2020 | 1.1 |