Frequencies for first 10,000 rows of prov4470 variable in posclia1998 dataset :

   prov4470 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,603       86.03       86.03
          A |        325        3.25       89.28
          B |         93        0.93       90.21
          C |        123        1.23       91.44
          D |         94        0.94       92.38
          E |        112        1.12       93.50
          F |         58        0.58       94.08
          G |         42        0.42       94.50
          H |         71        0.71       95.21
          I |          9        0.09       95.30
          J |          3        0.03       95.33
          V |        467        4.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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