Frequencies for first 10,000 rows of pct012f175 variable in sf12000860us21 dataset :

   68 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,019       90.19       90.19
          1 |        456        4.56       94.75
          2 |        157        1.57       96.32
          3 |         84        0.84       97.16
          4 |         42        0.42       97.58
          5 |         46        0.46       98.04
          6 |         26        0.26       98.30
          7 |         26        0.26       98.56
          8 |         20        0.20       98.76
          9 |         14        0.14       98.90
         10 |          7        0.07       98.97
         11 |         11        0.11       99.08
         12 |         11        0.11       99.19
         13 |          4        0.04       99.23
         14 |          9        0.09       99.32
         15 |          2        0.02       99.34
         16 |          4        0.04       99.38
         17 |          3        0.03       99.41
         18 |          4        0.04       99.45
         19 |          5        0.05       99.50
         20 |          3        0.03       99.53
         21 |          4        0.04       99.57
         22 |          2        0.02       99.59
         23 |          3        0.03       99.62
         24 |          3        0.03       99.65
         25 |          2        0.02       99.67
         26 |          3        0.03       99.70
         27 |          1        0.01       99.71
         28 |          2        0.02       99.73
         29 |          1        0.01       99.74
         30 |          1        0.01       99.75
         31 |          1        0.01       99.76
         33 |          2        0.02       99.78
         35 |          4        0.04       99.82
         36 |          2        0.02       99.84
         37 |          3        0.03       99.87
         38 |          1        0.01       99.88
         39 |          1        0.01       99.89
         41 |          1        0.01       99.90
         42 |          1        0.01       99.91
         43 |          2        0.02       99.93
         45 |          1        0.01       99.94
         47 |          1        0.01       99.95
         51 |          1        0.01       99.96
         53 |          1        0.01       99.97
         56 |          1        0.01       99.98
         62 |          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