| 年度 | 实际值 |
|---|---|
| 1992 | 3158 |
| 1993 | 3251 |
| 1994 | 5326 |
| 1995 | 6328 |
| 1996 | 7099 |
| 1997 | 8412 |
| 1998 | 4306 |
| 1999 | 2559 |
| 2000 | |
| 2001 | |
| 2002 | |
| 2003 | 34282 |
| 2004 | 40862 |
| 2005 | 43878 |
| 2006 | 49703 |
| 2007 | 75001 |
| 2008 | 89230 |
| 2009 | |
| 2010 | 113792 |
| 2011 | 175513 |
| 2012 | 228713 |
| 2013 | 217574 |
| 2014 | 251501 |
| 2015 | 298798 |
| 2016 | 311571 |
| 2017 | 353085 |
| 2018 | 344446 |