| 年度 | 实际值 |
|---|---|
| 1996 | 19866 |
| 1997 | |
| 1998 | |
| 1999 | 27410 |
| 2000 | 27097 |
| 2001 | 24985 |
| 2002 | 29549 |
| 2003 | 35215 |
| 2004 | 42827 |
| 2005 | 45782 |
| 2006 | 47086 |
| 2007 | 51380 |
| 2008 | 62645 |
| 2009 | 75178 |
| 2010 | 90330 |
| 2011 | 106039 |
| 2012 | 127315 |
| 2013 | 138167 |
| 2014 | 151419 |
| 2015 | 168104 |
| 2016 | 174767 |
| 2017 | 154396 |
| 2018 | 170920 |