年度 | 实际值 |
---|---|
1995 | 35.8 |
1996 | 36.5 |
1997 | 34.52 |
1998 | 35.6 |
1999 | |
2000 | 32.7 |
2001 | 31.73 |
2002 | 32.71 |
2003 | 32.06 |
2004 | 30.9 |
2005 | 31.69 |
2006 | 30.33 |
2007 | 27.52 |
2008 | 26.28 |
2009 | |
2010 | 24.47 |
2011 | 23.67 |
2012 | 27.47 |
2013 | 29.38 |
2014 | 31.14 |
2015 | 33.71 |
2016 | 39.43 |
2017 | |
2018 | 42.83 |