| Value | Category |
|---|---|
| 0 | NA |
| 1 | From govt.agency with incentive of money/prize |
| 2 | with no incentive but free |
| 3 | on payment |
| 4 | from other source free |
| 5 | from other source on payment |
| 6 | sought from govt.agency but not received |
| 7 | sought from othr agency but not received |
| 8 | |
| 9 | NR |
| Sysmiss |