Frequencies for first 10,000 rows of ssamsasz variable in posclia1997 dataset :

   ssamsasz |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,237       32.37       32.37
          A |        626        6.26       38.63
          B |      1,925       19.25       57.88
          C |      1,521       15.21       73.09
          D |      1,397       13.97       87.06
          E |      1,102       11.02       98.08
          F |        192        1.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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