| 年度 | 实际值 |
|---|---|
| 1997 | 153300 |
| 1998 | 144300 |
| 1999 | 130000 |
| 2000 | 122700 |
| 2001 | 123200 |
| 2002 | 113700 |
| 2003 | 108400 |
| 2004 | 142600 |
| 2005 | 141700 |
| 2006 | 144500 |
| 2007 | 148800 |
| 2008 | 143300 |
| 2009 | |
| 2010 | 145000 |
| 2011 | 146300 |
| 2012 | 150100 |
| 2013 | 250200 |
| 2014 | 255500 |
| 2015 | 34.73 |
| 2016 | 310000 |
| 2017 | 290000 |
| 2018 | 330000 |