年度 | 实际值 |
---|---|
1995 | 15.3 |
1996 | 10.6 |
1997 | 16.98 |
1998 | 8.3 |
1999 | 9.7 |
2000 | 9.4 |
2001 | 9.73 |
2002 | 8.69 |
2003 | 7.93 |
2004 | 8.97 |
2005 | 9.32 |
2006 | 8.33 |
2007 | 8.75 |
2008 | 8.67 |
2009 | |
2010 | 7.66 |
2011 | 6.59 |
2012 | 6.41 |
2013 | 6.26 |
2014 | 5.92 |
2015 | 5.81 |
2016 | 8 |
2017 | 7.19 |
2018 | 6.66 |