Value |
Category |
1 |
Kh«ng bÞ ¶nh hëng |
2 |
¶nh hëng ®«i chót |
3 |
¶nh hëng nhiÒu |
4 |
¶nh hëng rÊt nhiÒu |
9 |
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.