年度 | 实际值 |
---|---|
1995 | 28.1 |
1996 | 27.4 |
1997 | 27.68 |
1998 | 29 |
1999 | 28 |
2000 | 25.9 |
2001 | 26.9 |
2002 | 25.79 |
2003 | 28.35 |
2004 | 29.6 |
2005 | 29.44 |
2006 | 32.7 |
2007 | 35.72 |
2008 | 34.41 |
2009 | |
2010 | 39.04 |
2011 | 44.65 |
2012 | 47 |
2013 | 48.11 |
2014 | 47.67 |
2015 | 47.16 |
2016 | 46.58 |
2017 | |
2018 | 44.72 |