| Value |
Category |
| -9 |
Missing |
| -2 |
Don't know/refusal |
| 1 |
Always on time |
| 2 |
Usually/Mostly on time |
| 3 |
Usually/Mostly delayed |
| 4 |
Always delayed |
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.