更新时间：2018-06-15 13:56作者：李一老师
| 1999 | 8405 | 700 | 11.80% |
| 2000 | 10072 | 839 | 19.83% |
| 2001 | 11426 | 952 | 13.44% |
| 2002 | 12839 | 1070 | 12.37% |
| 2003 | 14162 | 1180 | 10.30% |
| 2004 | 15950 | 1329 | 12.63% |
| 2005 | 17940 | 1495 | 12.48% |
| 2006 | 20244 | 1687 | 12.84% |
| 2007 | 21420 | 1785 | 5.81% |
| 2008 | 23296 | 1941 | 8.76% |