年度 | 实际值 |
---|---|
1995 | 28 |
1996 | 26.7 |
1997 | 27.89 |
1998 | 28 |
1999 | 29.8 |
2000 | 30.8 |
2001 | 32.1 |
2002 | 32.88 |
2003 | 29.24 |
2004 | 27.34 |
2005 | 34.91 |
2006 | 35.02 |
2007 | 34.56 |
2008 | 31.77 |
2009 | |
2010 | 30.24 |
2011 | 28.09 |
2012 | 28.62 |
2013 | 30.74 |
2014 | 37.29 |
2015 | 44.01 |
2016 | 44.25 |
2017 | |
2018 | 41.93 |