年度 | 实际值 |
---|---|
1995 | 10.3 |
1996 | 11.5 |
1997 | 10.93 |
1998 | 11.2 |
1999 | 10.7 |
2000 | 10.8 |
2001 | 10.23 |
2002 | 9.74 |
2003 | 13.66 |
2004 | 13.51 |
2005 | 11.4 |
2006 | 10.57 |
2007 | 10.22 |
2008 | 9.53 |
2009 | |
2010 | 8.32 |
2011 | 8.6 |
2012 | 8.1 |
2013 | 7.92 |
2014 | 7.11 |
2015 | 7.33 |
2016 | 7.27 |
2017 | |
2018 | 6.39 |