| Value | Category | Cases | |
|---|---|---|---|
| 1 | 249 |
13.6%
|
|
| 2 | 423 |
23.1%
|
|
| 3 | 242 |
13.2%
|
|
| 4 | 359 |
19.6%
|
|
| 5 | 147 |
8%
|
|
| 6 | 147 |
8%
|
|
| 7 | 19 |
1%
|
|
| 8 | 171 |
9.3%
|
|
| 9 | 9 trips or more | 74 |
4%
|
| Sysmiss | 75 |