SMSAR |
1969 |
Household (core questionnaire) |
SMSARES |
1981 |
Household (core questionnaire) |
SMSARES |
1980 |
Household (core questionnaire) |
SMSARES |
1979 |
Household (core questionnaire) |
SMSARES |
1978 |
Household (core questionnaire) |
SMSARES |
1977 |
Household (core questionnaire) |
SMSARES |
1976 |
Household (core questionnaire) |
SMSARES |
1975 |
Household (core questionnaire) |
SMSARES |
1974 |
Household (core questionnaire) |
SMSARES |
1973 |
Household (core questionnaire) |
SMSARES |
1972 |
Household (core questionnaire) |
SMSARES |
1971 |
Household (core questionnaire) |
SMSARES |
1970 |
Household (core questionnaire) |