Frequencies for first 10,000 rows of pct012g155 variable in sf12000860us22 dataset :

   48 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,181       71.81       71.81
          1 |      1,348       13.48       85.29
          2 |        492        4.92       90.21
          3 |        278        2.78       92.99
          4 |        161        1.61       94.60
          5 |        128        1.28       95.88
          6 |         84        0.84       96.72
          7 |         56        0.56       97.28
          8 |         40        0.40       97.68
          9 |         28        0.28       97.96
         10 |         30        0.30       98.26
         11 |         19        0.19       98.45
         12 |         17        0.17       98.62
         13 |          9        0.09       98.71
         14 |         15        0.15       98.86
         15 |         13        0.13       98.99
         16 |         12        0.12       99.11
         17 |          7        0.07       99.18
         18 |          9        0.09       99.27
         19 |          6        0.06       99.33
         20 |          8        0.08       99.41
         21 |          5        0.05       99.46
         22 |          7        0.07       99.53
         23 |          1        0.01       99.54
         24 |          8        0.08       99.62
         25 |          6        0.06       99.68
         26 |          3        0.03       99.71
         27 |          2        0.02       99.73
         28 |          2        0.02       99.75
         29 |          6        0.06       99.81
         30 |          2        0.02       99.83
         31 |          3        0.03       99.86
         32 |          1        0.01       99.87
         33 |          2        0.02       99.89
         34 |          3        0.03       99.92
         35 |          1        0.01       99.93
         36 |          1        0.01       99.94
         37 |          1        0.01       99.95
         38 |          1        0.01       99.96
         39 |          1        0.01       99.97
         40 |          2        0.02       99.99
         77 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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