| 年度 | 实际值 |
|---|---|
| 1992 | 253712 |
| 1993 | |
| 1994 | |
| 1995 | 341001 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 343638 |
| 2000 | 330659 |
| 2001 | 331323 |
| 2002 | 322598 |
| 2003 | 318774 |
| 2004 | 334637 |
| 2005 | 344185 |
| 2006 | 338938 |
| 2007 | 344275 |
| 2008 | 328270 |
| 2009 | 327164 |
| 2010 | 330379 |
| 2011 | 313213 |
| 2012 | 315719 |
| 2013 | 308743 |
| 2014 | 318030 |
| 2015 | 321112.06 |
| 2016 | 304707 |