| 年度 | 实际值 |
|---|---|
| 1997 | 44200 |
| 1998 | 42400 |
| 1999 | |
| 2000 | 322600 |
| 2001 | 327800 |
| 2002 | 331600 |
| 2003 | 330000 |
| 2004 | 32 |
| 2005 | 317900 |
| 2006 | 293900 |
| 2007 | 277700 |
| 2008 | 283800 |
| 2009 | |
| 2010 | 312000 |
| 2011 | 314800 |
| 2012 | 310200 |
| 2013 | 301600 |
| 2014 | 309300 |
| 2015 | 319400 |
| 2016 | 330000 |
| 2017 | 340000 |
| 2018 | 360000 |