The Mannheim Eurobarometer Trend File 1970-2002 (ZA3521) is the product of a co-operation between:
The trend variables and data have been harmonized under the following aspects:
The current trend file data set edition v2.0.1 includes data from the European Communities Studies 1970 up to Eurobarometer 57.2 (2002), in total 86 waves, 145 variables, and over 1.000.000 cases.
The project was realized under the responsibility of Hermann Schmitt (MZES). The trend catalogue and the standard Eurobarometer data have been retrieved from the data bases of the former Center for European Survey Analysis and Studies (ZEUS). They have been up-dated from individual files obtained from the ZA. In its beginning the ZEUS data base was built on the single Eurobarometer editions as produced and distributed by ICPSR.
The cumulative Eurobarometer project is continued in cooperation between MZES and GESIS.
ZA study 3521 (data set edition v2.0.1) replaces former cumulative data sets ZA1684, ZA2533, and ZA3521 (former edition versions).