年度 | 实际值 |
---|---|
1992 | 3.1 |
1993 | |
1994 | |
1995 | 3.2 |
1996 | 4.86 |
1997 | 4.06 |
1998 | 5.58 |
1999 | 5.15 |
2000 | 2.41 |
2001 | 3.74 |
2002 | 3.81 |
2003 | 5.34 |
2004 | .38 |
2005 | 7.23 |
2006 | 7.27 |
2007 | 8.77 |
2008 | 4.23 |
2009 | |
2010 | 4.58 |
2011 | 3.7 |
2012 | 4.7 |
2013 | 2.7 |
2014 | 1.2 |
2015 | 2.52 |
2016 | 3.2 |
2017 | 2.57 |
2018 | 2.07 |