Frequencies for first 10,000 rows of p012c032 variable in sf12010860us7 dataset :

   20 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,369       83.69       83.69
          1 |        982        9.82       93.51
          2 |        322        3.22       96.73
          3 |        131        1.31       98.04
          4 |         68        0.68       98.72
          5 |         34        0.34       99.06
          6 |         26        0.26       99.32
          7 |         15        0.15       99.47
          8 |         13        0.13       99.60
          9 |          9        0.09       99.69
         10 |          7        0.07       99.76
         11 |          4        0.04       99.80
         12 |          1        0.01       99.81
         13 |          2        0.02       99.83
         14 |          3        0.03       99.86
         15 |          2        0.02       99.88
         17 |          1        0.01       99.89
         26 |          1        0.01       99.90
         27 |          2        0.02       99.92
         30 |          1        0.01       99.93
         36 |          1        0.01       99.94
         41 |          2        0.02       99.96
         55 |          1        0.01       99.97
         79 |          1        0.01       99.98
         81 |          1        0.01       99.99
         89 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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