| Variable | Year | Supplement |
|---|---|---|
| EMHEINS3 | 1989 | Health insurance |
| PLNPAY23 | 2003 | Person (core questionnaire) |
| PLNPAY23 | 2002 | Person (core questionnaire) |
| PLNPAY23 | 2001 | Person (core questionnaire) |
| PLNPAY23 | 2000 | Person (core questionnaire) |
| PLNPAY23 | 1999 | Person (core questionnaire) |
| PLNPAY23 | 1998 | Person (core questionnaire) |
| PLNPAY23 | 1997 | Person (core questionnaire) |