The Fertility and Family Surveys (FFS) were conducted in 23 United Nations Economic Commission for Europe (UNECE) Region countries from 1989 to 1999. The template survey includes 10 core and 4 optional modules. Topics include household characteristics, partnerships, fertility, and use of contraception. Each country developed a unique questionnaire derived from the standardized template. Sampling and data collection varied across the participating countries. In Germany, a total of 10,012 males and females between the age of 20 and 39 years were interviewed. The sample was stratified into 4 sub-groups in order to allow comparability between East and West German individuals.