| 年度 | 实际值 |
|---|---|
| 1997 | 299900 |
| 1998 | 281000 |
| 1999 | 270000 |
| 2000 | 270400 |
| 2001 | 255300 |
| 2002 | 254900 |
| 2003 | 255700 |
| 2004 | 260000 |
| 2005 | 271300 |
| 2006 | 257800 |
| 2007 | 257000 |
| 2008 | 259600 |
| 2009 | |
| 2010 | 272100 |
| 2011 | 262900 |
| 2012 | 282500 |
| 2013 | 336100 |
| 2014 | 330000 |
| 2015 | 29.14 |
| 2016 | 340000 |
| 2017 | 310000 |
| 2018 | 290000 |