年度 | 实际值 |
---|---|
1993 | 21 |
1994 | 21 |
1995 | 22 |
1996 | 22 |
1997 | 22 |
1998 | |
1999 | 24 |
2000 | 24 |
2001 | 27 |
2002 | 28 |
2003 | 31 |
2004 | 32 |
2005 | 32 |
2006 | 33 |
2007 | 33 |
2008 | 40 |
2009 | |
2010 | 52 |
2011 | 56 |
2012 | 60 |
2013 | 61 |
2014 | 62 |
2015 | 64 |
2016 | 64 |
2017 | 64 |
2018 | 64 |