年度 | 实际值 |
---|---|
1995 | 24.4 |
1996 | 22.3 |
1997 | 21.43 |
1998 | 23.2 |
1999 | 25 |
2000 | 27.6 |
2001 | 29.9 |
2002 | 30.88 |
2003 | 30 |
2004 | 27.49 |
2005 | 38.59 |
2006 | 34.18 |
2007 | 31.52 |
2008 | 29.16 |
2009 | |
2010 | 32.33 |
2011 | 41.4 |
2012 | 44.46 |
2013 | 45.25 |
2014 | 44.17 |
2015 | 47 |
2016 | 47.97 |
2017 | |
2018 | 50.54 |