| 年度 | 实际值 |
|---|---|
| 1997 | 44300 |
| 1998 | 43100 |
| 1999 | 160000 |
| 2000 | 166700 |
| 2001 | 176700 |
| 2002 | 182300 |
| 2003 | 190000 |
| 2004 | 20 |
| 2005 | 197000 |
| 2006 | 199400 |
| 2007 | 196800 |
| 2008 | 185900 |
| 2009 | |
| 2010 | 101600 |
| 2011 | 102400 |
| 2012 | 102800 |
| 2013 | 158000 |
| 2014 | 158500 |
| 2015 | 156400 |
| 2016 | 160000 |
| 2017 | 160000 |
| 2018 | 160000 |
| 2019 | 157500 |