گزینههای پاسخ: Missing, Not asked in survey, Not applicable, No answer, Don´t know, Very important, Rather important, Not very important, Not at all important
گزینههای پاسخ: Missing, Not asked in survey, Not applicable, No answer, Don´t know, Very important, Rather important, Not very important, Not at all important
گزینههای پاسخ: Missing, Not asked in survey, Not applicable, No answer, Don´t know, Very important, Rather important, Not very important, Not at all important
گزینههای پاسخ: Missing, Not asked in survey, Not applicable, No answer, Don´t know, Very important, Rather important, Not very important, Not at all important
گزینههای پاسخ: Missing; Unknown, Not asked in survey, Not applicable, No answer, Don't know, Argentina, Brazil, Belarus, Chile, China, Czech Rep., India, Japan, South Korea, Mexico, Nigeria, Poland, Russia, Slovakia, South Africa
