年度 | 实际值 |
---|---|
1992 | 15.5 |
1993 | |
1994 | |
1995 | 15 |
1996 | |
1997 | |
1998 | |
1999 | 14 |
2000 | 14.3 |
2001 | 14.5 |
2002 | 14.5 |
2003 | 14.49 |
2004 | 14.49 |
2005 | 14.48 |
2006 | 14.55 |
2007 | 14.43 |
2008 | 14.49 |
2009 | 14.35 |
2010 | 11.45 |
2011 | 11.4 |
2012 | 11.09 |
2013 | 9.61 |
2014 | 9.57 |
2015 | 12.5 |