| Field study status | Total | DMV registered | DMV unregistered | DMV instantaneous | DMV long term | DMV chronic |
|---|---|---|---|---|---|---|
| Registered | 70,418 | 65,425 | 4,993 | 3,630 | 1,156 | 207 |
| Unregistered | 2,459 | 2,124 | 335 | 107 | 201 | 27 |
| Instantaneous | 1,771 | 1,636 | 135 | 20 | 106 | 9 |
| Long term | 670 | 480 | 190 | 86 | 93 | 11 |
| Chronic | 18 | 8 | 10 | 1 | 2 | 7 |
| Front | 6,627 | 6,092 | 535 | 307 | 193 | 35 |
| Unknown | 9,153 | 8,397 | 756 | 136 | 573 | 47 |
| Total | 88,657 | 82,038 | 6,619 | 4,180 | 2,123 | 316 |