年度 | 实际值 |
---|---|
1995 | 55.6 |
1996 | 53.4 |
1997 | 50.68 |
1998 | 48.1 |
1999 | 49.6 |
2000 | 47.4 |
2001 | 47.69 |
2002 | 47.52 |
2003 | 50.19 |
2004 | 50.92 |
2005 | 48.67 |
2006 | 48.52 |
2007 | 46.56 |
2008 | 45.48 |
2009 | |
2010 | 39.71 |
2011 | 41.12 |
2012 | 38.75 |
2013 | 37.19 |
2014 | 34.69 |
2015 | 31.84 |
2016 | 29.83 |
2017 | 30.46 |
2018 | 29.78 |