年度 | 实际值 |
---|---|
1995 | 30 |
1996 | 32.3 |
1997 | 33.02 |
1998 | 30 |
1999 | 31.5 |
2000 | 29.8 |
2001 | 30.19 |
2002 | 30.63 |
2003 | 33.57 |
2004 | 35.85 |
2005 | 35.95 |
2006 | 38.02 |
2007 | 37.11 |
2008 | 39.46 |
2009 | |
2010 | 44.09 |
2011 | 46.09 |
2012 | 46.25 |
2013 | 46.33 |
2014 | 46.17 |
2015 | 39.89 |
2016 | 38.87 |
2017 | |
2018 | 34.9 |