| 年度 | 实际值 |
|---|---|
| 1997 | 331800 |
| 1998 | 244200 |
| 1999 | 230000 |
| 2000 | 205900 |
| 2001 | 174000 |
| 2002 | 163700 |
| 2003 | 165000 |
| 2004 | 163700 |
| 2005 | 163500 |
| 2006 | 159500 |
| 2007 | 149900 |
| 2008 | 136300 |
| 2009 | |
| 2010 | 132600 |
| 2011 | 134300 |
| 2012 | 138100 |
| 2013 | 139700 |
| 2014 | 145100 |
| 2015 | 12 |
| 2016 | 120000 |
| 2017 | 110000 |
| 2018 | 110000 |