| 年度 | 实际值 |
|---|---|
| 1997 | 678000 |
| 1998 | 563100 |
| 1999 | 520000 |
| 2000 | 471600 |
| 2001 | 421800 |
| 2002 | 380400 |
| 2003 | 376200 |
| 2004 | 380500 |
| 2005 | 383900 |
| 2006 | 341600 |
| 2007 | 341300 |
| 2008 | 340900 |
| 2009 | |
| 2010 | 280400 |
| 2011 | 344700 |
| 2012 | 317800 |
| 2013 | 358800 |
| 2014 | 374100 |
| 2015 | 372200 |
| 2016 | 370000 |
| 2017 | 350000 |
| 2018 | 320000 |