Frequencies for first 10,000 rows of ssamsasz variable in posclia1999 dataset :

   ssamsasz |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,312       33.12       33.12
          A |          2        0.02       33.14
          B |      2,172       21.72       54.86
          C |      1,712       17.12       71.98
          D |      1,420       14.20       86.18
          E |      1,195       11.95       98.13
          F |        187        1.87      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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