年度 | 实际值 |
---|---|
1995 | 6.4 |
1996 | 8.2 |
1997 | 8.53 |
1998 | 9 |
1999 | 9.7 |
2000 | 8.6 |
2001 | 8.26 |
2002 | 8.16 |
2003 | 7.16 |
2004 | 6.15 |
2005 | 6.44 |
2006 | 6.45 |
2007 | 5.96 |
2008 | 5.65 |
2009 | |
2010 | 5.04 |
2011 | 5.09 |
2012 | 5.41 |
2013 | 5.23 |
2014 | 5.43 |
2015 | 5.75 |
2016 | 8.84 |
2017 | |
2018 | 6.07 |