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| Code | Description |
| A | ESTIMATED FROM CES DATA |
| C | CHANGED (RE-REPORTED) |
| D | DATA REPORTED FROM MISSING DATA NOTICE |
| E | ESTIMATED |
| H | HAND-ESTIMATED |
| L | LATE-REPORTER |
| M | MISSING |
| N | ZERO FILLED, LONG TIME DELQNT |
| P | PRORATED FROM PARENT TO WORKSITE |
| R | REPORTED |
| W | ESTIMATED FROM WAGE RECORD COUNT |
| X | NON-NUMERIC, ZERO-FILLED |