| 年度 | 实际值 |
|---|---|
| 1981 | 683 |
| 1982 | 711 |
| 1983 | 1287 |
| 1984 | 2246 |
| 1985 | 2324 |
| 1986 | 4525 |
| 1987 | 5941 |
| 1988 | 7995 |
| 1989 | 15190 |
| 1990 | 20215 |
| 1991 | 24936 |
| 1992 | 30905 |
| 1993 | 44464 |
| 1994 | 60551 |
| 1995 | 87913 |
| 1996 | 128962 |
| 1997 | 157079 |
| 1998 | 184677 |
| 1999 | 212416 |
| 2000 | 251886 |
| 2001 | 314134 |
| 2002 | 406067 |
| 2003 | 506991 |
| 2004 | 527090 |
| 2005 | 641385 |
| 2006 | 837011 |
| 2007 | 943530 |
| 2008 | 1269178 |
| 2009 | 1594309 |
| 2010 | 1916891 |
| 2011 | 2275465 |
| 2012 | 2493831 |
| 2013 | 2642505 |
| 2014 | 2752558 |
| 2015 | 3275781 |