Frequencies for first 10,000 rows of pct012l076 variable in sf12000860us27 dataset :

   73 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,795       87.95       87.95
          1 |        646        6.46       94.41
          2 |        229        2.29       96.70
          3 |        111        1.11       97.81
          4 |         71        0.71       98.52
          5 |         32        0.32       98.84
          6 |         22        0.22       99.06
          7 |         18        0.18       99.24
          8 |         17        0.17       99.41
          9 |         11        0.11       99.52
         10 |          6        0.06       99.58
         11 |          7        0.07       99.65
         12 |          2        0.02       99.67
         13 |          6        0.06       99.73
         14 |          2        0.02       99.75
         15 |          3        0.03       99.78
         16 |          4        0.04       99.82
         17 |          1        0.01       99.83
         18 |          1        0.01       99.84
         19 |          2        0.02       99.86
         20 |          1        0.01       99.87
         22 |          2        0.02       99.89
         23 |          1        0.01       99.90
         24 |          1        0.01       99.91
         27 |          1        0.01       99.92
         28 |          1        0.01       99.93
         31 |          1        0.01       99.94
         45 |          1        0.01       99.95
         47 |          1        0.01       99.96
         63 |          1        0.01       99.97
         79 |          1        0.01       99.98
         83 |          1        0.01       99.99
        135 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017