Value |
Category |
0 |
Not given |
2012 |
|
2013 |
|
2014 |
|
2015 |
|
4444 |
Marked on card |
9997 |
Inconsistent |
9998 |
DK |
9999 |
Missing |
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.