How many points higher was the HDI value of Mexico City for its 2010 value than Tláhuac?
return Mexico City ;return Tláhuac ;return HDI values of #1 ;return HDI values of #2 ;return #3 in  2010 ;return #4 in  2010 ;return the  difference of #5 and  #6
['select', 'select', 'project', 'project', 'filter', 'filter', 'arithmetic']