Frequencies for first 10,000 rows of pct012f073 variable in sf12000860us21 dataset :

   70 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,150       91.50       91.50
          1 |        434        4.34       95.84
          2 |        134        1.34       97.18
          3 |         60        0.60       97.78
          4 |         49        0.49       98.27
          5 |         40        0.40       98.67
          6 |         25        0.25       98.92
          7 |         19        0.19       99.11
          8 |         17        0.17       99.28
          9 |         10        0.10       99.38
         10 |          9        0.09       99.47
         11 |          5        0.05       99.52
         12 |          4        0.04       99.56
         13 |          3        0.03       99.59
         14 |          8        0.08       99.67
         15 |          3        0.03       99.70
         16 |          3        0.03       99.73
         17 |          1        0.01       99.74
         18 |          4        0.04       99.78
         19 |          3        0.03       99.81
         20 |          1        0.01       99.82
         21 |          1        0.01       99.83
         22 |          2        0.02       99.85
         24 |          2        0.02       99.87
         25 |          3        0.03       99.90
         26 |          2        0.02       99.92
         27 |          1        0.01       99.93
         29 |          2        0.02       99.95
         34 |          1        0.01       99.96
         36 |          2        0.02       99.98
         37 |          1        0.01       99.99
         62 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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