年度 | 实际值 |
---|---|
1995 | 4.7 |
1996 | 25.9 |
1997 | 42.11 |
1998 | 17.2 |
1999 | 16.8 |
2000 | 15.5 |
2001 | 14.34 |
2002 | 13.86 |
2003 | 13.6 |
2004 | 13.66 |
2005 | 14.42 |
2006 | 13.06 |
2007 | 12.43 |
2008 | 11.39 |
2009 | |
2010 | 9.44 |
2011 | 8.07 |
2012 | 7.74 |
2013 | 7.64 |
2014 | 7.07 |
2015 | 6.81 |
2016 | 6.65 |
2017 | 6.35 |
2018 | 6.21 |