Frequencies for first 10,000 rows of pct012o041 variable in sf12010860us34 dataset :

   38 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,043       70.43       70.43
          1 |      1,389       13.89       84.32
          2 |        615        6.15       90.47
          3 |        340        3.40       93.87
          4 |        214        2.14       96.01
          5 |        129        1.29       97.30
          6 |         92        0.92       98.22
          7 |         44        0.44       98.66
          8 |         37        0.37       99.03
          9 |         32        0.32       99.35
         10 |         20        0.20       99.55
         11 |         14        0.14       99.69
         12 |          5        0.05       99.74
         13 |          8        0.08       99.82
         14 |          2        0.02       99.84
         15 |          5        0.05       99.89
         16 |          2        0.02       99.91
         17 |          2        0.02       99.93
         18 |          1        0.01       99.94
         19 |          1        0.01       99.95
         21 |          1        0.01       99.96
         22 |          1        0.01       99.97
         26 |          1        0.01       99.98
         29 |          1        0.01       99.99
         37 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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