年度 | 实际值 |
---|---|
1998 | 31.5 |
1999 | 28.2 |
2000 | 24.4 |
2001 | 25.75 |
2002 | 29.7 |
2003 | 32.77 |
2004 | 36.26 |
2005 | 38.24 |
2006 | 41.19 |
2007 | 41.79 |
2008 | 44.16 |
2009 | |
2010 | 45.97 |
2011 | 52.57 |
2012 | 53.34 |
2013 | 53.54 |
2014 | 53.44 |
2015 | 52.09 |
2016 | 51.57 |
2017 | 44.92 |
2018 | 44.67 |