| Value |
Category |
| A |
|
| AB |
|
| ABC |
|
| ABCD |
|
| ABCDX |
|
| ABCX |
|
| ABD |
|
| ABX |
|
| AC |
|
| ACD |
|
| AD |
|
| AX |
|
| B |
|
| BC |
|
| BCD |
|
| BCX |
|
| BD |
|
| BX |
|
| C |
|
| CD |
|
| CX |
|
| D |
|
| DX |
|
| X |
|
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.