How many more Macedonians were there compared to Albanians according to the 2002 census?
return Macedonians ;return #1 according to the  2002 census ;return Albanians ;return #3 according to the  2002 census ;return number of  #2 ;return number of  #4 ;return difference of #5 and  #6
['select', 'filter', 'select', 'filter', 'aggregate', 'aggregate', 'arithmetic']