Frequencies for first 10,000 rows of pct012g148 variable in sf12000860us22 dataset :

   41 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,877       68.77       68.77
          1 |      1,317       13.17       81.94
          2 |        562        5.62       87.56
          3 |        334        3.34       90.90
          4 |        198        1.98       92.88
          5 |        143        1.43       94.31
          6 |         96        0.96       95.27
          7 |         67        0.67       95.94
          8 |         53        0.53       96.47
          9 |         41        0.41       96.88
         10 |         50        0.50       97.38
         11 |         29        0.29       97.67
         12 |         24        0.24       97.91
         13 |         10        0.10       98.01
         14 |         25        0.25       98.26
         15 |         22        0.22       98.48
         16 |         15        0.15       98.63
         17 |         16        0.16       98.79
         18 |          9        0.09       98.88
         19 |          9        0.09       98.97
         20 |          4        0.04       99.01
         21 |         11        0.11       99.12
         22 |         12        0.12       99.24
         23 |          7        0.07       99.31
         24 |          7        0.07       99.38
         26 |          8        0.08       99.46
         27 |          5        0.05       99.51
         28 |          6        0.06       99.57
         29 |          5        0.05       99.62
         30 |          3        0.03       99.65
         31 |          1        0.01       99.66
         32 |          2        0.02       99.68
         33 |          2        0.02       99.70
         34 |          1        0.01       99.71
         35 |          3        0.03       99.74
         36 |          4        0.04       99.78
         37 |          2        0.02       99.80
         38 |          3        0.03       99.83
         41 |          1        0.01       99.84
         42 |          2        0.02       99.86
         43 |          2        0.02       99.88
         44 |          2        0.02       99.90
         45 |          1        0.01       99.91
         48 |          1        0.01       99.92
         51 |          2        0.02       99.94
         52 |          1        0.01       99.95
         54 |          1        0.01       99.96
         56 |          1        0.01       99.97
         58 |          1        0.01       99.98
         60 |          1        0.01       99.99
         91 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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