Year | Rate | Year | Rate | Year | Rate |
---|---|---|---|---|---|
1990 | 14.5 | 1999 | 5 | 2008 | 4.3 |
1991 | 14.2 | 2000 | 5 | 2009 | 4 |
1992 | 13.2 | 2001 | 5 | 2010 | 4.5 |
1993 | 13.3 | 2002 | 4.8 | 2011 | 3.9 |
1994 | 11.1 | 2003 | 4.9 | 2012 | 3.5 |
1995 | 8.5 | 2004 | 4.6 | 2013 | 3 |
1996 | 7.4 | 2005 | 4.5 | 2014 | 2.7 |
1997 | 6 | 2006 | 4.8 | ||
1998 | 5.1 | 2007 | 4.2 |