年度 | 实际值 |
---|---|
1992 | 23 |
1993 | 23 |
1994 | 24 |
1995 | 25 |
1996 | 28 |
1997 | 27 |
1998 | 28 |
1999 | 28 |
2000 | 29 |
2001 | 30 |
2002 | 31 |
2003 | 32.05 |
2004 | 32.03 |
2005 | 31.15 |
2006 | 33.85 |
2007 | 36.78 |
2008 | 40.45 |
2009 | |
2010 | 39.29 |
2011 | 48.9 |
2012 | 48.58 |
2013 | 49.02 |
2014 | 50.39 |
2015 | 38.78 |