年度 | 实际值 |
---|---|
1995 | 26.8 |
1996 | 26.8 |
1997 | 24.47 |
1998 | 23.2 |
1999 | 21.7 |
2000 | 19.8 |
2001 | 18.23 |
2002 | 16.42 |
2003 | 14.4 |
2004 | 13.84 |
2005 | 13.71 |
2006 | 12.85 |
2007 | 12.3 |
2008 | 12.1 |
2009 | |
2010 | 12.6 |
2011 | 12.12 |
2012 | 11.66 |
2013 | 11.96 |
2014 | 11.35 |
2015 | 11.32 |
2016 | 11.17 |
2017 | |
2018 | 9.96 |