| 1995 | 1998 | 1999 | 2000 | 2001 | 2002 | |
| Total number | 19 756 | 19 960 | 18 981 | 18 259 | 18 384 | 21 340 |
| by age category | ||||||
| up to 2 years | 1 238 | 1 316 | 1 370 | 1 437 | 1 651 | 1 813 |
| 2 - 5 years | 1 866 | 2 002 | 2 145 | 2 262 | 2 280 | 2 281 |
| 5 - 10 years | 10 080 | 6 275 | 4 460 | 3 138 | 3 300 | 3 429 |
| over 10 years | 6 572 | 10 367 | 11 006 | 11 422 | 11 153 | 13 817 |
| by type of motor energy | ||||||
| petrol | 287 | 278 | 237 | 216 | 203 | 3 243 |
| diesel | 19 326 | 19 564 | 18 656 | 17 966 | 18 107 | 18 014 |
| other sources | 143 | 118 | 88 | 77 | 74 | 83 |
| Number of seats | ||||||
| total | 786 012 | 763 305 | 704 364 | 652 966 | 631 484 | 630 526 |
| Source: CRV |
