| 年度 | 实际值 |
|---|---|
| 1997 | 488500 |
| 1998 | 404000 |
| 1999 | 370000 |
| 2000 | 329200 |
| 2001 | 308000 |
| 2002 | 285700 |
| 2003 | 358600 |
| 2004 | 290100 |
| 2005 | 290000 |
| 2006 | 299100 |
| 2007 | 295300 |
| 2008 | 307700 |
| 2009 | |
| 2010 | 315900 |
| 2011 | 342600 |
| 2012 | 512100 |
| 2013 | 522300 |
| 2014 | 521900 |
| 2015 | 518700 |
| 2016 | 550000 |
| 2017 | 560000 |
| 2018 | 560000 |