年度 | 实际值 |
---|---|
1995 | 6.6 |
1996 | 7.4 |
1997 | 7.3 |
1998 | 8.3 |
1999 | 8.8 |
2000 | 8.1 |
2001 | 8.01 |
2002 | 8.03 |
2003 | 7.78 |
2004 | 7.2 |
2005 | 7.38 |
2006 | 6.87 |
2007 | 6.68 |
2008 | 6.68 |
2009 | |
2010 | 6.12 |
2011 | 6.33 |
2012 | 6.88 |
2013 | 7.06 |
2014 | 7.29 |
2015 | 8.06 |
2016 | 6.74 |
2017 | |
2018 | 5.24 |