The overviews of the surveys with different focusses will help you to find the matching data among a multitude of studies for you.
Documentation of Longitudinal Studies into the Education System
Overview of Comparative Surveys Worldwide
The following chronological overview1 of cross-national comparative survey projects focuses on sample surveys among individuals or (private) households framing total (adult) national populations.(more)
Data from GDR and the New Federal States
The main focus of the data lies on empirical social research studies from the GDR, on studies from the official radio and television audience research, and on studies originating from the scientific following of social change in the New Federal States. (more)