年度 | 实际值 |
---|---|
1992 | 6.3 |
1993 | 6.1 |
1994 | |
1995 | 5.44 |
1996 | 4.29 |
1997 | 3.07 |
1998 | 7.18 |
1999 | 2.47 |
2000 | 2.97 |
2001 | 2.27 |
2002 | 2.25 |
2003 | 3.09 |
2004 | 2.18 |
2005 | 1.31 |
2006 | 1.79 |
2007 | 2.64 |
2008 | 2.13 |
2009 | |
2010 | 1.36 |
2011 | .6 |
2012 | 3.1 |
2013 | 2.3 |
2014 | 2.4 |
2015 | 2.16 |
2016 | 2.44 |
2017 | 0.95 |
2018 | 2.38 |