| Value |
Category |
| 0 |
|
| 1 |
|
| 2 |
|
| 3 |
|
| 4 |
|
| 5 |
|
| 10 |
|
| 15 |
|
| 17 |
|
| 20 |
|
| 25 |
|
| 30 |
|
| 997 |
Have no lost due to delivery delays |
| 998 |
Don't use input materials |
| 999 |
DK-NA |
| 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.