年度 | 实际值 |
---|---|
1995 | 24.6 |
1996 | 27 |
1997 | 33.01 |
1998 | 33 |
1999 | 34.9 |
2000 | 34.6 |
2001 | 34.77 |
2002 | 34.46 |
2003 | 34.34 |
2004 | 32.73 |
2005 | 32.11 |
2006 | 32.33 |
2007 | 32.34 |
2008 | 31.33 |
2009 | |
2010 | 29.1 |
2011 | 28.29 |
2012 | 30.48 |
2013 | 31.39 |
2014 | 31.55 |
2015 | 38.96 |
2016 | 40.15 |
2017 | |
2018 | 43.19 |