Frequencies for first 10,000 rows of prov4470 variable in posclia2005 dataset :

   prov4470 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,267       92.67       92.67
          A |        182        1.82       94.49
          B |          4        0.04       94.53
          C |        125        1.25       95.78
          D |         14        0.14       95.92
          E |         67        0.67       96.59
          F |         31        0.31       96.90
          G |         24        0.24       97.14
          H |         56        0.56       97.70
          I |          8        0.08       97.78
          J |          5        0.05       97.83
          V |        217        2.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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