年度 | 实际值 |
---|---|
1992 | 9.9 |
1993 | 9 |
1994 | |
1995 | 8.51 |
1996 | 6.33 |
1997 | 7.65 |
1998 | 2.66 |
1999 | 6.25 |
2000 | 6.29 |
2001 | 5.82 |
2002 | 4.37 |
2003 | 3.86 |
2004 | 3.41 |
2005 | 2.87 |
2006 | 3.58 |
2007 | 3.9 |
2008 | 3.16 |
2009 | |
2010 | 3.34 |
2011 | 3.8 |
2012 | 2.7 |
2013 | 5.3 |
2014 | 6 |
2015 | 6 |
2016 | 8.03 |
2017 | 5.95 |
2018 | 5.77 |