Frequencies for first 10,000 rows of pct012l193 variable in sf12010860us31 dataset :

   86 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,975       89.75       89.75
          1 |        606        6.06       95.81
          2 |        203        2.03       97.84
          3 |         92        0.92       98.76
          4 |         31        0.31       99.07
          5 |         25        0.25       99.32
          6 |          8        0.08       99.40
          7 |         13        0.13       99.53
          8 |         10        0.10       99.63
          9 |          4        0.04       99.67
         10 |          4        0.04       99.71
         11 |          6        0.06       99.77
         12 |          2        0.02       99.79
         13 |          3        0.03       99.82
         14 |          2        0.02       99.84
         15 |          2        0.02       99.86
         16 |          1        0.01       99.87
         17 |          3        0.03       99.90
         20 |          1        0.01       99.91
         21 |          1        0.01       99.92
         24 |          2        0.02       99.94
         27 |          1        0.01       99.95
         28 |          1        0.01       99.96
         38 |          1        0.01       99.97
         44 |          1        0.01       99.98
         60 |          1        0.01       99.99
         90 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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