Frequencies for first 10,000 rows of pct012n151 variable in sf12010860us33 dataset :

   44 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,094       90.94       90.94
          1 |        583        5.83       96.77
          2 |        165        1.65       98.42
          3 |         56        0.56       98.98
          4 |         34        0.34       99.32
          5 |         20        0.20       99.52
          6 |         10        0.10       99.62
          7 |          8        0.08       99.70
          8 |          2        0.02       99.72
          9 |          4        0.04       99.76
         10 |          2        0.02       99.78
         11 |          3        0.03       99.81
         12 |          2        0.02       99.83
         13 |          1        0.01       99.84
         14 |          1        0.01       99.85
         15 |          3        0.03       99.88
         19 |          1        0.01       99.89
         20 |          4        0.04       99.93
         22 |          2        0.02       99.95
         23 |          1        0.01       99.96
         29 |          1        0.01       99.97
         41 |          2        0.02       99.99
         47 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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