| Value |
Category |
| 0 |
zero |
| 1 |
one |
| 2 |
two |
| 3 |
three |
| 4 |
four |
| 5 |
five |
| 6 |
six |
| 7 |
seven |
| 8 |
eight |
| 9 |
nine |
| 10 |
ten |
| 11 |
eleven |
| 12 |
|
| 15 |
|
| 18 |
|
| 20 |
|
| 21 |
|
| 30 |
|
| 31 |
|
| 40 |
|
| 51 |
|
| 60 |
|
| 61 |
|
| 71 |
|
| 80 |
|
| 91 |
|
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.