Response options: DE,SE:Inapplicable ; RU:Inappropriate response; Missing{Inap, Not asked in survey, Not applicable, No answer, Don´t know, Have done, Might do, Would never do
Response options: CN,DE,SE:Inapplicable ; RU:Inappropriate response; Missing{I, Not asked in survey, Not applicable, No answer, Don´t know, Have done, Might do, Would never do
Response options: Several times a day, Once a day, A few times a week, Once a week, A few times a month, Less often than that [OR], Never, (DO NOT READ) Don’t know, (DO NOT READ) Refused