| 年度 | 实际值 |
|---|---|
| 1992 | 2690 |
| 1993 | 3355 |
| 1994 | 5180 |
| 1995 | 6270 |
| 1996 | 7116 |
| 1997 | |
| 1998 | |
| 1999 | |
| 2000 | 12000 |
| 2001 | 15800 |
| 2002 | 18700 |
| 2003 | 22100 |
| 2004 | 26600 |
| 2005 | 30000 |
| 2006 | 35500 |
| 2007 | 49400 |
| 2008 | 61500 |
| 2009 | 74800 |
| 2010 | 85600 |
| 2011 | 100700 |
| 2012 | 123600 |
| 2013 | 116200 |
| 2014 | 131000 |
| 2015 | 149900 |
| 2016 | 181000 |