年度 | 实际值 |
---|---|
1995 | 32.2 |
1996 | 30.8 |
1997 | 31.01 |
1998 | 32 |
1999 | 34.9 |
2000 | 38.5 |
2001 | 39.3 |
2002 | 38.45 |
2003 | 36.74 |
2004 | 32.84 |
2005 | 36.6 |
2006 | 35.71 |
2007 | 31.96 |
2008 | 31.05 |
2009 | |
2010 | 32.43 |
2011 | 30.72 |
2012 | 29.5 |
2013 | 33.43 |
2014 | 36.23 |
2015 | 37.7 |
2016 | 37.88 |
2017 | |
2018 | 49.5 |