Frequencies for first 10,000 rows of pct012b203 variable in sf12010860us21 dataset :

   96 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,788       87.88       87.88
          1 |        693        6.93       94.81
          2 |        216        2.16       96.97
          3 |        109        1.09       98.06
          4 |         64        0.64       98.70
          5 |         32        0.32       99.02
          6 |         25        0.25       99.27
          7 |         25        0.25       99.52
          8 |          7        0.07       99.59
          9 |          8        0.08       99.67
         10 |         11        0.11       99.78
         11 |          7        0.07       99.85
         12 |          3        0.03       99.88
         13 |          3        0.03       99.91
         14 |          1        0.01       99.92
         16 |          1        0.01       99.93
         17 |          1        0.01       99.94
         18 |          4        0.04       99.98
         22 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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