Frequencies for first 10,000 rows of pct012g147 variable in sf12000860us22 dataset :

   40 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,778       67.78       67.78
          1 |      1,399       13.99       81.77
          2 |        505        5.05       86.82
          3 |        328        3.28       90.10
          4 |        180        1.80       91.90
          5 |        147        1.47       93.37
          6 |        117        1.17       94.54
          7 |         88        0.88       95.42
          8 |         58        0.58       96.00
          9 |         56        0.56       96.56
         10 |         45        0.45       97.01
         11 |         24        0.24       97.25
         12 |         28        0.28       97.53
         13 |         19        0.19       97.72
         14 |         21        0.21       97.93
         15 |         22        0.22       98.15
         16 |         24        0.24       98.39
         17 |         11        0.11       98.50
         18 |         12        0.12       98.62
         19 |         11        0.11       98.73
         20 |         14        0.14       98.87
         21 |         12        0.12       98.99
         22 |          7        0.07       99.06
         23 |          9        0.09       99.15
         24 |          9        0.09       99.24
         25 |          6        0.06       99.30
         26 |          3        0.03       99.33
         27 |          1        0.01       99.34
         28 |          6        0.06       99.40
         29 |          3        0.03       99.43
         30 |          5        0.05       99.48
         31 |          5        0.05       99.53
         32 |          5        0.05       99.58
         33 |          1        0.01       99.59
         34 |          2        0.02       99.61
         35 |          2        0.02       99.63
         36 |          3        0.03       99.66
         37 |          3        0.03       99.69
         38 |          5        0.05       99.74
         40 |          1        0.01       99.75
         41 |          3        0.03       99.78
         42 |          2        0.02       99.80
         44 |          2        0.02       99.82
         45 |          2        0.02       99.84
         46 |          5        0.05       99.89
         47 |          2        0.02       99.91
         48 |          2        0.02       99.93
         49 |          1        0.01       99.94
         51 |          1        0.01       99.95
         61 |          1        0.01       99.96
         64 |          1        0.01       99.97
         67 |          1        0.01       99.98
         68 |          1        0.01       99.99
        113 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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