Frequencies for first 10,000 rows of pct012g146 variable in sf12000860us22 dataset :

   39 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,813       68.13       68.13
          1 |      1,311       13.11       81.24
          2 |        589        5.89       87.13
          3 |        316        3.16       90.29
          4 |        217        2.17       92.46
          5 |        139        1.39       93.85
          6 |         96        0.96       94.81
          7 |         71        0.71       95.52
          8 |         62        0.62       96.14
          9 |         44        0.44       96.58
         10 |         38        0.38       96.96
         11 |         30        0.30       97.26
         12 |         31        0.31       97.57
         13 |         24        0.24       97.81
         14 |         28        0.28       98.09
         15 |         14        0.14       98.23
         16 |         13        0.13       98.36
         17 |         16        0.16       98.52
         18 |         10        0.10       98.62
         19 |          7        0.07       98.69
         20 |         16        0.16       98.85
         21 |          5        0.05       98.90
         22 |         13        0.13       99.03
         23 |         10        0.10       99.13
         24 |          5        0.05       99.18
         25 |          7        0.07       99.25
         26 |         10        0.10       99.35
         27 |          6        0.06       99.41
         28 |          8        0.08       99.49
         29 |          3        0.03       99.52
         31 |          3        0.03       99.55
         32 |          4        0.04       99.59
         34 |          4        0.04       99.63
         36 |          2        0.02       99.65
         37 |          3        0.03       99.68
         38 |          1        0.01       99.69
         39 |          4        0.04       99.73
         40 |          4        0.04       99.77
         41 |          1        0.01       99.78
         42 |          2        0.02       99.80
         43 |          2        0.02       99.82
         44 |          1        0.01       99.83
         45 |          1        0.01       99.84
         46 |          1        0.01       99.85
         47 |          2        0.02       99.87
         48 |          2        0.02       99.89
         50 |          1        0.01       99.90
         52 |          3        0.03       99.93
         53 |          1        0.01       99.94
         54 |          1        0.01       99.95
         56 |          1        0.01       99.96
         57 |          1        0.01       99.97
         62 |          1        0.01       99.98
         75 |          1        0.01       99.99
        137 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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