Frequencies for first 10,000 rows of pct012n107 variable in sf12010860us33 dataset :

    Under 1 |
       year |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,545       85.45       85.45
          1 |        845        8.45       93.90
          2 |        316        3.16       97.06
          3 |        129        1.29       98.35
          4 |         68        0.68       99.03
          5 |         35        0.35       99.38
          6 |         18        0.18       99.56
          7 |          8        0.08       99.64
          8 |          9        0.09       99.73
          9 |          3        0.03       99.76
         10 |          2        0.02       99.78
         11 |          3        0.03       99.81
         12 |          6        0.06       99.87
         13 |          4        0.04       99.91
         15 |          1        0.01       99.92
         16 |          1        0.01       99.93
         21 |          1        0.01       99.94
         22 |          2        0.02       99.96
         23 |          1        0.01       99.97
         27 |          1        0.01       99.98
         38 |          1        0.01       99.99
         51 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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