Frequencies for first 10,000 rows of pct012c164 variable in sf12010860us22 dataset :

   57 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,585       85.85       85.85
          1 |        987        9.87       95.72
          2 |        252        2.52       98.24
          3 |         77        0.77       99.01
          4 |         41        0.41       99.42
          5 |         24        0.24       99.66
          6 |          8        0.08       99.74
          7 |          8        0.08       99.82
          8 |          3        0.03       99.85
          9 |          1        0.01       99.86
         10 |          2        0.02       99.88
         12 |          2        0.02       99.90
         16 |          1        0.01       99.91
         21 |          2        0.02       99.93
         27 |          1        0.01       99.94
         33 |          1        0.01       99.95
         34 |          1        0.01       99.96
         37 |          1        0.01       99.97
         45 |          1        0.01       99.98
         59 |          1        0.01       99.99
         65 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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