Frequencies for first 10,000 rows of pct012l198 variable in sf12010860us31 dataset :

   91 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,493       94.93       94.93
          1 |        352        3.52       98.45
          2 |         77        0.77       99.22
          3 |         41        0.41       99.63
          4 |         13        0.13       99.76
          5 |          8        0.08       99.84
          6 |          4        0.04       99.88
          7 |          2        0.02       99.90
          8 |          2        0.02       99.92
          9 |          3        0.03       99.95
         11 |          1        0.01       99.96
         16 |          1        0.01       99.97
         27 |          1        0.01       99.98
         37 |          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