年度 | 实际值 |
---|---|
1995 | 29.5 |
1996 | 28.5 |
1997 | 28.6 |
1998 | 29.4 |
1999 | 31.9 |
2000 | 32.3 |
2001 | 33.93 |
2002 | 34.52 |
2003 | 32.72 |
2004 | 33.83 |
2005 | 34.63 |
2006 | 35.1 |
2007 | 36.82 |
2008 | 37.75 |
2009 | |
2010 | 37.91 |
2011 | 36 |
2012 | 36.06 |
2013 | 37.34 |
2014 | 37.89 |
2015 | 40.8 |
2016 | 41.7 |
2017 | |
2018 | 49.52 |