Frequencies for first 10,000 rows of pct012b200 variable in sf12010860us21 dataset :

   93 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,219       82.19       82.19
          1 |        875        8.75       90.94
          2 |        351        3.51       94.45
          3 |        180        1.80       96.25
          4 |         97        0.97       97.22
          5 |         57        0.57       97.79
          6 |         44        0.44       98.23
          7 |         35        0.35       98.58
          8 |         26        0.26       98.84
          9 |         18        0.18       99.02
         10 |         13        0.13       99.15
         11 |         11        0.11       99.26
         12 |         16        0.16       99.42
         13 |          6        0.06       99.48
         14 |          6        0.06       99.54
         15 |          7        0.07       99.61
         16 |          6        0.06       99.67
         17 |          9        0.09       99.76
         18 |          4        0.04       99.80
         19 |          3        0.03       99.83
         20 |          3        0.03       99.86
         21 |          2        0.02       99.88
         22 |          1        0.01       99.89
         24 |          1        0.01       99.90
         25 |          3        0.03       99.93
         27 |          1        0.01       99.94
         29 |          2        0.02       99.96
         32 |          1        0.01       99.97
         33 |          1        0.01       99.98
         36 |          1        0.01       99.99
         39 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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