Frequencies for first 10,000 rows of pct012d195 variable in sf12010880us23 dataset :

   88 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,304       93.04       93.04
          1 |        431        4.31       97.35
          2 |        121        1.21       98.56
          3 |         54        0.54       99.10
          4 |         35        0.35       99.45
          5 |         12        0.12       99.57
          6 |          6        0.06       99.63
          7 |          8        0.08       99.71
          8 |          9        0.09       99.80
          9 |          8        0.08       99.88
         10 |          2        0.02       99.90
         11 |          2        0.02       99.92
         13 |          1        0.01       99.93
         15 |          1        0.01       99.94
         17 |          1        0.01       99.95
         22 |          1        0.01       99.96
         25 |          1        0.01       99.97
         31 |          1        0.01       99.98
         51 |          1        0.01       99.99
         72 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017