How many percent higher was the literacy rate of males than that of females in Rajasthan in 1991?
return Rajasthan ;return males of #1 ;return females of #1 ;return literacy rates in  percent of #2 ;return literacy rates in  percent of #3 ;return #4 in  1991 ;return #5 in  1991 ;return the  difference of #6 and  #7
['select', 'project', 'project', 'project', 'project', 'filter', 'filter', 'arithmetic']