年度 | 实际值 |
---|---|
1995 | 7.8 |
1996 | 8.4 |
1997 | 5.07 |
1998 | 7.1 |
1999 | 9.1 |
2000 | 7.2 |
2001 | 6.54 |
2002 | 5.61 |
2003 | 5.49 |
2004 | 4.55 |
2005 | 6.4 |
2006 | 6.4 |
2007 | 3.22 |
2008 | 3.38 |
2009 | |
2010 | 4.47 |
2011 | 4.21 |
2012 | 5.61 |
2013 | 6.04 |
2014 | 6.27 |
2015 | 6.36 |
2016 | 6.22 |
2017 | 6.31 |