年度 | 实际值 |
---|---|
1995 | 37 |
1996 | 37.2 |
1997 | 30.2 |
1998 | 30.5 |
1999 | 29.9 |
2000 | 30.3 |
2001 | 29.95 |
2002 | 30.73 |
2003 | 34.58 |
2004 | 38.83 |
2005 | |
2006 | 46.68 |
2007 | 51.63 |
2008 | 53.86 |
2009 | |
2010 | 58.91 |
2011 | 62.69 |
2012 | 63.08 |
2013 | 66.03 |
2014 | 60.67 |
2015 | 57.85 |
2016 | 57.97 |
2017 | |
2018 | 40.47 |