1985:
1986:
1987:
1988:
1989:
1990:
2015:
2017:
soep-core-2017-hh-m12/4 soep-core-2017-hh/4
2019:
soep-core-2019-hh2/4 soep-core-2019-hh3/4
2020:
2021:
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