Frequencies for low variable in drg2002 dataset :

 Low Volume |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        484       92.54       92.54
          * |         39        7.46      100.00
------------+-----------------------------------
      Total |        523      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016