| 年度 | 实际值 |
|---|---|
| 1997 | 3699908 |
| 1998 | 3606538 |
| 1999 | 3812968 |
| 2000 | 4208384 |
| 2001 | 4265783 |
| 2002 | 4900356 |
| 2003 | 5379124 |
| 2004 | 6073256 |
| 2005 | 7140491 |
| 2006 | 8074811 |
| 2007 | 9715933 |
| 2008 | 11725358 |
| 2009 | |
| 2010 | 15485836 |
| 2011 | 18369471 |
| 2012 | 22594181 |
| 2013 | 18479496 |
| 2014 | 24063779 |
| 2015 | 30341171 |