A set of statistical tables relating to the surveys that took place before 1977 is published in this section. No microdata are available for these years.
The tables include much more detailed information than the ones published in the corresponding Supplements.
The tables refer to the surveys conducted from 1965 to 1975 (there are no tables available for the 1976 survey).
Information on the pilot surveys, which were conducted in 1961 and 1962, are published in the section Miscellanea (Italian version).
The historical documents are available only in Italian.
