| 年度 | 实际值 |
|---|---|
| 1992 | 1939 |
| 1993 | 2138 |
| 1994 | 1827 |
| 1995 | 1956 |
| 1996 | 2283 |
| 1997 | 2811 |
| 1998 | 2864 |
| 1999 | 3250 |
| 2000 | |
| 2001 | |
| 2002 | |
| 2003 | 11849 |
| 2004 | 14629 |
| 2005 | 19557 |
| 2006 | 23045 |
| 2007 | 36945 |
| 2008 | 48792 |
| 2009 | |
| 2010 | 65260 |
| 2011 | 80797 |
| 2012 | 140833 |
| 2013 | 140836 |
| 2014 | 147545 |
| 2015 | 155222 |
| 2016 | 234571 |
| 2017 | 235405 |
| 2018 | 262501 |