| 年度 | 实际值 |
|---|---|
| 1999 | 1790309 |
| 2000 | 1947438 |
| 2001 | 2165900 |
| 2002 | 2440100 |
| 2003 | 3136000 |
| 2004 | 3931000 |
| 2005 | 5014400 |
| 2006 | 6204500 |
| 2007 | 7495400 |
| 2008 | 9426500 |
| 2009 | 10284000 |
| 2010 | 11842300 |
| 2011 | 13543100 |
| 2012 | 14439100 |
| 2013 | 15180700 |
| 2014 | 15205400 |
| 2015 | 15844200 |
| 2016 | 16809900 |
| 2017 | 18978400 |
| 2018 | 20719100 |