年度 | 实际值 |
---|---|
1992 | 8.1 |
1993 | 8.5 |
1994 | |
1995 | 9.59 |
1996 | 2.47 |
1997 | |
1998 | |
1999 | |
2000 | 6.55 |
2001 | 7.11 |
2002 | 6.22 |
2003 | 5.22 |
2004 | 4.9 |
2005 | 4.2 |
2006 | 5.15 |
2007 | 4.92 |
2008 | 18.2 |
2009 | 5.13 |
2010 | 5.11 |
2011 | 5.13 |
2012 | 5.5 |
2013 | 8 |
2014 | 7.69 |
2015 | 4.14 |