Frequencies for first 10,000 rows of pct012n029 variable in sf12010860us33 dataset :

   26 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,002       90.02       90.02
          1 |        608        6.08       96.10
          2 |        188        1.88       97.98
          3 |         79        0.79       98.77
          4 |         37        0.37       99.14
          5 |         19        0.19       99.33
          6 |         15        0.15       99.48
          7 |          7        0.07       99.55
          8 |          7        0.07       99.62
          9 |          1        0.01       99.63
         10 |          3        0.03       99.66
         11 |          7        0.07       99.73
         12 |          3        0.03       99.76
         13 |          3        0.03       99.79
         14 |          2        0.02       99.81
         16 |          3        0.03       99.84
         18 |          2        0.02       99.86
         19 |          1        0.01       99.87
         20 |          1        0.01       99.88
         22 |          2        0.02       99.90
         24 |          1        0.01       99.91
         25 |          1        0.01       99.92
         28 |          2        0.02       99.94
         30 |          1        0.01       99.95
         35 |          1        0.01       99.96
         40 |          1        0.01       99.97
         41 |          1        0.01       99.98
         54 |          1        0.01       99.99
         59 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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