Frequencies for first 10,000 rows of ssamsasz variable in posclia2004 dataset :

   ssamsasz |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,778       27.78       27.78
          A |          2        0.02       27.80
          B |      2,423       24.23       52.03
          C |      2,009       20.09       72.12
          D |      1,343       13.43       85.55
          E |      1,328       13.28       98.83
          F |        117        1.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016