年度 | 实际值 |
---|---|
1995 | 32.1 |
1996 | 29.4 |
1997 | 31.26 |
1998 | 35.3 |
1999 | 39 |
2000 | 39.2 |
2001 | 39.36 |
2002 | 38.25 |
2003 | 37.55 |
2004 | 35.62 |
2005 | 40.6 |
2006 | 38.95 |
2007 | 39.05 |
2008 | 39.16 |
2009 | |
2010 | 39.01 |
2011 | 38.96 |
2012 | 39.59 |
2013 | 40.63 |
2014 | 43.58 |
2015 | 48.5 |
2016 | 50.31 |
2017 | |
2018 | 51.52 |