年度 | 实际值 |
---|---|
1995 | 27.6 |
1996 | 26.9 |
1997 | 25.7 |
1998 | 28.7 |
1999 | |
2000 | 25.3 |
2001 | 24.17 |
2002 | 24.32 |
2003 | 24.59 |
2004 | 25.68 |
2005 | 28.69 |
2006 | 28.89 |
2007 | 31.52 |
2008 | 32.53 |
2009 | |
2010 | 39.6 |
2011 | 44.98 |
2012 | 49 |
2013 | 53.16 |
2014 | 55.12 |
2015 | 55.24 |
2016 | 53.47 |
2017 | |
2018 | 55.28 |