A summary table of data sources by some meta-characteristics, including: Dates of collection; representative quality; depth; sample size; whether they include demographic or political variables; whether they are leveraged to build the stratification frame and/or the voting behaviour models.

Note that though the census tables enumerate the entire population of the country at the macro-level, we sample at random from its joint distribution a smaller micro-data sample of size noted in the table, which we use later to integrate the IHDS.