| 年度 | 实际值 |
|---|---|
| 1997 | 17500 |
| 1998 | 18400 |
| 1999 | |
| 2000 | 309100 |
| 2001 | 300000 |
| 2002 | 293100 |
| 2003 | 300000 |
| 2004 | 30 |
| 2005 | 303500 |
| 2006 | 291100 |
| 2007 | 286000 |
| 2008 | 285000 |
| 2009 | |
| 2010 | 276400 |
| 2011 | 270700 |
| 2012 | 262900 |
| 2013 | 256800 |
| 2014 | 258500 |
| 2015 | 262400 |
| 2016 | 270000 |
| 2017 | 290000 |
| 2018 | 310000 |