| Value |
Category |
Cases |
|
| -9 |
Don't know (spontaneous) |
0 |
|
| 1997 |
|
1 |
|
| 2008 |
|
1 |
|
| 2011 |
|
2 |
|
| 2018 |
|
1 |
|
| 2020 |
|
2 |
|
| Sysmiss |
|
395 |
|
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.
