| 1986 |
| 1987 |
| 1988 |
| 1989 |
| 1990 |
| 1991 |
| 1992 |
| 1993 |
| 1994 |
| 1995 |
| 1996 |
| 1997 |
| 1998 |
| 1999 |
| 2000 |
| 2001 |
| 2002 |
| 2003 |
| 2004 | |
| 129291 |
109128 |
20163 |
| 149984 |
123406 |
26578 |
| 198628 |
149004 |
49624 |
| 251387 |
187222 |
64165 |
| 277342 |
218881 |
58461 |
| 385052 |
290628 |
94424 |
| 499907 |
357127 |
142780 |
| 673269 |
432313 |
240956 |
| 899144 |
608657 |
290487 |
| 1151230 |
769782 |
381448 |
| 1254126 |
804147 |
449979 |
| 1427732 |
1011113 |
416619 |
| 1485382 |
1086623 |
398759 |
| 1830540 |
1287125 |
543415 |
| 2783265 |
1944279 |
838986 |
| 3279969 |
2297747 |
982222 |
| 4195650 |
2941102 |
1254548 |
| 6141083 |
4159499 |
1981584 |
| 8521312 |
5814638 |
2706674 | |
