Frequencies for first 10,000 rows of pct012o048 variable in sf12000860us30 dataset :

   45 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,270       72.70       72.70
          1 |      1,377       13.77       86.47
          2 |        557        5.57       92.04
          3 |        237        2.37       94.41
          4 |        161        1.61       96.02
          5 |         77        0.77       96.79
          6 |         87        0.87       97.66
          7 |         42        0.42       98.08
          8 |         38        0.38       98.46
          9 |         32        0.32       98.78
         10 |         24        0.24       99.02
         11 |          8        0.08       99.10
         12 |          9        0.09       99.19
         13 |         11        0.11       99.30
         14 |         16        0.16       99.46
         15 |          9        0.09       99.55
         16 |          8        0.08       99.63
         17 |          2        0.02       99.65
         18 |          4        0.04       99.69
         19 |          3        0.03       99.72
         20 |          1        0.01       99.73
         21 |          1        0.01       99.74
         22 |          7        0.07       99.81
         27 |          3        0.03       99.84
         29 |          2        0.02       99.86
         31 |          1        0.01       99.87
         32 |          3        0.03       99.90
         33 |          1        0.01       99.91
         34 |          1        0.01       99.92
         35 |          3        0.03       99.95
         37 |          1        0.01       99.96
         42 |          1        0.01       99.97
         45 |          1        0.01       99.98
         52 |          1        0.01       99.99
         92 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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