Frequencies for first 10,000 rows of pct012l080 variable in sf12010860us31 dataset :

   77 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,443       84.43       84.43
          1 |        714        7.14       91.57
          2 |        314        3.14       94.71
          3 |        162        1.62       96.33
          4 |         97        0.97       97.30
          5 |         63        0.63       97.93
          6 |         57        0.57       98.50
          7 |         20        0.20       98.70
          8 |         24        0.24       98.94
          9 |         10        0.10       99.04
         10 |         14        0.14       99.18
         11 |         11        0.11       99.29
         12 |          9        0.09       99.38
         13 |          4        0.04       99.42
         14 |          6        0.06       99.48
         15 |          6        0.06       99.54
         16 |          8        0.08       99.62
         17 |          3        0.03       99.65
         18 |          5        0.05       99.70
         19 |          3        0.03       99.73
         20 |          6        0.06       99.79
         22 |          1        0.01       99.80
         23 |          1        0.01       99.81
         25 |          1        0.01       99.82
         26 |          2        0.02       99.84
         27 |          2        0.02       99.86
         28 |          1        0.01       99.87
         29 |          3        0.03       99.90
         31 |          1        0.01       99.91
         36 |          1        0.01       99.92
         40 |          1        0.01       99.93
         44 |          1        0.01       99.94
         51 |          1        0.01       99.95
         57 |          1        0.01       99.96
         71 |          1        0.01       99.97
         78 |          1        0.01       99.98
        118 |          1        0.01       99.99
        153 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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