| Value | Category |
|---|---|
| -9 | Don't Know |
| -8 | Refused |
| -5 | Not Applicable |
| -3 | Missing |
| 0 | |
| 50 | |
| 60 | |
| 100 | |
| 110 | |
| 150 | |
| 180 | |
| 200 | |
| 225 | |
| 250 | |
| 260 | |
| 280 | |
| 300 | |
| 310 | |
| 320 | |
| 330 | |
| 340 | |
| 350 | |
| 360 | |
| 380 | |
| 400 | |
| 420 | |
| 450 | |
| 480 | |
| 500 | |
| 550 | |
| 600 | |
| 650 | |
| 700 | |
| 720 | |
| 750 | |
| 778 | |
| 800 | |
| 850 | |
| 900 | |
| 1000 | |
| 1200 | |
| 1400 | |
| 1500 | |
| 1680 | |
| 1700 | |
| 2000 | |
| 2500 | |
| 3000 | |
| 4000 | |
| 10000 | |
| Sysmiss |