年度 | 实际值 |
---|---|
1995 | 33.2 |
1996 | 32.3 |
1997 | 31.9 |
1998 | 31 |
1999 | 37 |
2000 | 36.2 |
2001 | 39.56 |
2002 | 36.45 |
2003 | 33.39 |
2004 | 30.07 |
2005 | 31.37 |
2006 | 29.05 |
2007 | 30.56 |
2008 | 31.55 |
2009 | |
2010 | 37.39 |
2011 | 36.37 |
2012 | 35.76 |
2013 | 37.95 |
2014 | 39.79 |
2015 | 48.75 |
2016 | 50.82 |
2017 | |
2018 | 56.33 |