Response options: DE,SE:Inapplicable ; Missing{Inappropriate}, Not asked in survey, Not applicable, No answer, Don´t know, Very Frequently, Quite frequently, Not frequently, Not at all frequently
Response options: Missing; RU,DE: Inappropriate response SG: Refused{Inappropr, Not asked in survey, Not applicable, No answer, Don´t know, A great deal, Quite a lot, Not very much, None at all
