Frequencies for first 10,000 rows of pct012b092 variable in sf12010860us21 dataset :

   89 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,362       83.62       83.62
          1 |        820        8.20       91.82
          2 |        352        3.52       95.34
          3 |        152        1.52       96.86
          4 |         86        0.86       97.72
          5 |         61        0.61       98.33
          6 |         40        0.40       98.73
          7 |         23        0.23       98.96
          8 |         16        0.16       99.12
          9 |         20        0.20       99.32
         10 |         14        0.14       99.46
         11 |          8        0.08       99.54
         12 |          9        0.09       99.63
         13 |          8        0.08       99.71
         14 |          6        0.06       99.77
         15 |          3        0.03       99.80
         16 |          3        0.03       99.83
         17 |          1        0.01       99.84
         18 |          4        0.04       99.88
         20 |          4        0.04       99.92
         21 |          3        0.03       99.95
         22 |          1        0.01       99.96
         25 |          2        0.02       99.98
         34 |          1        0.01       99.99
         35 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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