Value | Category |
---|---|
-8 | Don't know |
-1 | Missing |
1 | This term or during the preceding vacation |
2 | Last term of the previous school year (May August 2017) |
3 | Earlier than the last term of the previous school year (before May 2017) |
4 | It has not yet met |
2147483622 | |
Sysmiss |