| Value | Category |
|---|---|
| 1 | Work for pay, goods sale, and consumption |
| 2 | Work for pay and goods for sale |
| 3 | Work for pay and goods for consumption |
| 4 | Work for pay only |
| 5 | Goods for sale and goods for consumption |
| 6 | Goods for sale only |
| 7 | Goods for consumption only |
| 8 | None |
| 9 | NIU (not in universe) |
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