iPEHD Raw Data: Wages and Income Tax The codebooks in the codebooks section provide detailed information on the variables. Before accessing the data, please make sure to read the raw data and merging data sections. Daily Wages 1892 (CSV, 26 KB) 1901 (CSV, 27 KB) Teacher Income 1886 (CSV, 18 KB) Income Tax 1878 (CSV, 23 KB) You Might Also Be Interested In Artikel Welcome to iPEHD – the ifo Prussian Economic History Database Area ifo Center for the Economics of Education