a3

Central Statistical Office (GUS) is performed annually throughout the country MANDATORY TESTING THE FARM.
Tests are performed on randomly selected farms by interviewers - through direct interviews or teleankieterów - by telephone interview.

Central Statistical Office (GUS) is performed annually throughout the country MANDATORY TESTING THE FARM.
Tests are performed on randomly selected farms by interviewers - through direct interviews or teleankieterów - by telephone interview.