| 1978 | 423 | 19 019 | 729 | 67 | 36 | |
| 1980 | 857 | 22 753 | 47 214 | 1 147 | 804 | |
| 1985 | 4 362 | 26 949 | 67 392 | 113 | 852 | 1 079 |
| 1986 | 5 013 | 25 193 | 73 399 | 107 | 1 093 | 1 390 |
| 1987 | 6 039 | 27 552 | 75 795 | 81 | 928 | 1 220 |
| 1988 | 6 535 | 26 238 | 66 174 | 90 | 984 | 1 403 |
| 1989 | 7 224 | 30 186 | 70 695 | 104 | 1 063 | 1 648 |
| 1990 | 7 478 | 30 158 | 65 540 | 97 | 827 | 1 539 |
| 1991 | 8 210 | 29 633 | 68 305 | 37 | 1 297 | 2 028 |
| 1992 | 10 087 | 28 607 | 61 119 | 181 | 687 | 1 965 |
| 1993 | 11 660 | 25 624 | 58 141 | 72 | 896 | 1 307 |
| 1994 | 10 436 | 24 623 | 62 353 | 111 | 753 | 2 149 |
| 1995 | 13 296 | 28 041 | 79 436 | 165 | 982 | 1 937 |
| 1996 | 13 494 | 26 902 | 61 281 | 111 | 713 | 2 249 |
| 1997 | 13 102 | 26 597 | 68 752 | 84 | 589 | 2 196 |
| 1998 | 14 171 | 26 663 | 69 247 | 97 | 885 | 3 485 |
| 1999 | 14 316 | 26 816 | 80 617 | 201 | 761 | 3 376 |
| 2000 | 15 202 | 26 196 | 97 011 | 51 | 1 221 | 2 837 |
| 2001 | 12 936 | 25 160 | 89 104 | 100 | 884 | 2 509 |
| 2002 | 15 001 | 25 981 | 31 469 | 100 | 484 | 2 637 |