年度 | 实际值 |
---|---|
1995 | 35.3 |
1996 | 31.3 |
1997 | 29.28 |
1998 | 31.8 |
1999 | |
2000 | |
2001 | |
2002 | 29.27 |
2003 | 32.44 |
2004 | 36.02 |
2005 | 46.64 |
2006 | 49.3 |
2007 | 55.32 |
2008 | 52.71 |
2009 | |
2010 | 56.4 |
2011 | 53.31 |
2012 | 40.97 |
2013 | 43.92 |
2014 | 42.73 |
2015 | 33.71 |
2016 | 27.68 |
2017 | 22.91 |
2018 | 23.2 |