Value |
Category |
-9 |
Don't know (spontaneous) |
-6 |
Investigations are still in process |
0 |
|
1 |
|
10 |
|
50 |
|
100 |
|
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.