Frequencies for first 10,000 rows of prov0320 variable in pos1992 dataset :

 current ro |
   flag: no |
       date |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,982       99.82       99.82
          1 |          7        0.07       99.89
          2 |          1        0.01       99.90
          3 |          1        0.01       99.91
          4 |          1        0.01       99.92
          5 |          1        0.01       99.93
          6 |          2        0.02       99.95
          7 |          1        0.01       99.96
          9 |          1        0.01       99.97
         12 |          2        0.02       99.99
         15 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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