Questionnaire about travelling by airThis survey is important. Please answer honestly and spontaneously.Your answers Name* Firstname* E-Mail* How many trips by air longer than 5 hours did you take last year?* A return flight counts 2 trips. A flight with transfer (changing airplane) counts as 1 trip please select 0 1 2 3 4 5 more I am scared / afraid / frightened of flying* please select I totally disagree I disagree neutral I agree I totally agree no answer / I don't know I have health problems during / after / because of travelling by air* please select I totally disagree I disagree neutral I agree I totally agree no answer / I don't know I sleep well while travelling by air* please select I totally disagree I disagree neutral I agree I totally agree no answer / I don't know I appreciate the food offered on airplanes* please select I totally disagree I disagree neutral I agree I totally agree no answer / I don't know Please note at least one suggestion what airlines should do better* How much is hundred minus one (enter digits)? Warum?