Frequencies for first 10,000 rows of prov2880 variable in pos1998 dataset :

    type of |
     action |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          4        0.04        0.04
          1 |      2,750       27.50       27.54
          2 |      6,850       68.50       96.04
          3 |        228        2.28       98.32
          4 |         19        0.19       98.51
          5 |        147        1.47       99.98
          6 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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