expenditures: Constructor for Evs data source class
Description
Germany's Sample survey of income and expenditure
(Einkommens- und Verbrauchsstichprobe, EVS) is conducted
by the Federal Statistical Office. The data provided here
is processed and is not identical with der Federal
Office' data. Some information is lost by the processing.
If you want more and/or more accurate data, contact the
Federal Statistical Office.