Metadata for Official Statistics

Demarcation of survey units

In what follows, you will find information on certain survey units. For each survey year, the variables needed to form specific identifiers are indicated.

Households

In the microcensus, the demarcation of private households usually takes place via the number of the sampling district and the number of the household in the sampling district. Moreover, in some microcensus scientific use files (SUFs), it is necessary to take the federal state (Bundesland) into account; in other microcensuses, demarcation on the basis of the household number is sufficient.

The following overview includes all the variables that are required to unequivocally demarcate a private household in the respective survey years. In these variables, persons who belong to the population resident in non-institutional and institutional collective dwellings should be coded as “Missing”.

Mikrocensus (year) Variables required to demarcate a household
2008-2012
  • EF1: Bundesland
  • EF3: Nr. des Auswahlbezirks
  • EF12: Berichtsquartal
  • EF5b: Jahresüberhang aus dem Vorjahr
  • EF4: Nr. des Haushalts im Auswahlbezirk
2007
  • EF1: Bundesland
  • EF3: Nr. des Auswahlbezirks
  • EF12: Berichtsquartal
  • EF4: Nr. des Haushalts im Auswahlbezirk

See also: recoding double indicators in the SUF 2007: [.do] [.sps] [.sas]

2006
  • EF1: Bundesland
  • EF3: Nr. des Auswahlbezirks
  • EF12: Berichtsquartal
  • EF4: Nr. des Haushalts im Auswahlbezirk
  • EF5b: Jahresüberhang aus dem Vorjahr

See also: recoding double indicators in the SUF 2006: [.do] [.sps] [.sas]

2005
  • EF1: Bundesland
  • EF3: Nr. des Auswahlbezirks
  • EF12: Berichtsquartal
  • EF4: Nr. des Haushalts im Auswahlbezirk
1996-2004
  • EF1: Bundesland
  • EF3: Nr. des Auswahlbezirks
  • EF4: Nr. des Haushalts im Auswahlbezirk
1993-1995
  • EF1: Bundesland
  • EF2: Nr. des Haushalts
1991
  • EF1: Bundesland
  • O402: Nr. des Haushalts
1989
  • EF1: Bundesland
  • O303: Nr. des Haushalts
1985, 1987
  • EF1: Bundesland
  • EF3: Nr. des Auswahlbezirks
  • EF4: Nr. des Haushalts im Auswahlbezirk
1973, 1976, 1978, 1980, 1982
  • EF1: Bundesland
  • EF5: Nr. des Auswahlbezirks
  • EF203: Nr. des Haushalts im Auswahlbezirk

Families

A unique family number can be created in the microcensus by combining the household number and the family number. The following table provides an overview of the corresponding variables for the identification of families in the individual microcensuses.

Mikrocensus (year) Variable to demarce families
since 2005
  • EF25: Nr. der Familie im Haushalt
1996-2004
  • EF28: Nr. der Familie im Haushalt
1985, 1987, 1989, 1991, 1995
  • EF6: Nr. der Familie im Haushalt
1976,1978
  • EF10: Nr. der Familie im Haushalt
1973, 1980, 1982
  • EF205: Nr. der Familie im Haushalt

Living arrangements

Information about consensual unions has been available only since the 1996 Microcensus. To identify consensual unions, the household number can be combined with the number of the consensual union. The following table provides an overview of the corresponding variables for the identification of consensual unions.

Mikrocensus (year) Variable to distinguish living arrangements
since 2005
  • EF27: Nr. der Lebensform im Haushalt
1996-2004
  • EF643: Nr. der Lebensform im Haushalt