Frequencies for first 10,000 rows of pct012k133 variable in sf12000860us26 dataset :

   26 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,011       90.11       90.11
          1 |        721        7.21       97.32
          2 |        162        1.62       98.94
          3 |         55        0.55       99.49
          4 |         20        0.20       99.69
          5 |          8        0.08       99.77
          6 |          2        0.02       99.79
          7 |          6        0.06       99.85
          8 |          3        0.03       99.88
         15 |          1        0.01       99.89
         16 |          1        0.01       99.90
         17 |          1        0.01       99.91
         22 |          1        0.01       99.92
         23 |          1        0.01       99.93
         27 |          1        0.01       99.94
         32 |          1        0.01       99.95
         36 |          1        0.01       99.96
         58 |          1        0.01       99.97
         68 |          1        0.01       99.98
         80 |          1        0.01       99.99
         88 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017