گزینههای پاسخ: Never, Less than once a month, About once a month, Two or three times a month, About once a week, Several times a week, Once a day, More than once a day
گزینههای پاسخ: SG: Missing;DE: Inapplicable;RU: Inappropriate response{Inap, Not asked, Not applicable, No answer, Don´t know, Mentioned, Not mentioned
گزینههای پاسخ: SG: Missing;DE: Inapplicable;RU: Inappropriate response{Inap, Not asked, Not applicable, No answer, Don´t know, Mentioned, Not mentioned