Contents: 1 Development of sample sizes 2 1.1 Development of the number of successful interviews by cross-section 2 1.2 Longitudinal development of losses due to panel attrition 10 1.3 Entrants by birth or move-ins and their participation behavior 14 2 Losses due to unsuccessful follow-up 15 2.1 Drop-out rates by mobility behavior 15 2.2 Definition of the covariates for a Logit anaysis 17 2.3 Estimated coefficients of the Logit model 18 3 Losses due to refusals 22 3.1 Drop out rates by different household characteristics 22 3.2 Definition of the covariates for a Logit analysis 31 3.3 Estimated coefficients of the Logit model 34 4 References 42