Frequencies for first 10,000 rows of prov2880 variable in pos1999 dataset :

    type of |
     action |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          3        0.03        0.03
          1 |      2,817       28.17       28.20
          2 |      6,744       67.44       95.64
          3 |        268        2.68       98.32
          4 |         17        0.17       98.49
          5 |        149        1.49       99.98
          6 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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