How many people in Houston, in terms of percentage, commuted to work by driving alone, using public transit, or using a bicycle combined in 2016?
return Houston ;return people in   2016 of #1 ;return #2 that commuted to work by driving alone ;return #2 that commuted to work using public transit ;return #2 that commuted to work using a bicycle ;return percentage of #3 ;return percentage of #4 ;return percentage of #5 ;return sum of #6 ,    #7 ,  #8
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