With such a distribution , representative in terms of unfiled rates would sensibly mean at the low ( 1 and less than 1 percent ) , lower middle ( 2 and 3 percent ) , upper middle ( 4 , 5 , and 6 percent ) , and high ( 9 , 10 , and 15 percent ) points .
This distribution would sensibly mean at the low , lower middle , upper middle and high points , according to The Economist .