英语短文阅读理解he survey above shows the muiscal habits of a few of

英语短文阅读理解
he survey above shows the muiscal habits of a few of our readers.interestingly,fourteen people out of the twenty questioned play a musical instrument,while only six eople and the other four between three and six hours a week.
the best intrument to play is the guitar;eight people say it is their favorite instrment to play.another four people like playing the piano and two like playing the violin.two people,however,don't like playing the violin or the piano as they think they are too difficult.
pop concerts are always popular but,in this survey only eight people say they like going to concerts,six to pop concerts and tow to jazz concerts.
a higher number,eighteen,say they like listening to music as they find it relaxing.only two people don't like listening to music at all.these results seem to suggest that we are more actively musical than we think.
问题：how many of the twenty people don't play a musical instrument?