年度 | 实际值 |
---|---|
1997 | 53.86 |
1998 | 55.9 |
1999 | |
2000 | |
2001 | |
2002 | 37.93 |
2003 | 35.4 |
2004 | 35.29 |
2005 | 31.98 |
2006 | 28.27 |
2007 | 26.98 |
2008 | 21.72 |
2009 | |
2010 | 21.45 |
2011 | 22.14 |
2012 | 21.67 |
2013 | 21.84 |
2014 | 21.85 |
2015 | 22.03 |
2016 | 21.51 |
2017 | |
2018 | 19.85 |