Frequencies for first 10,000 rows of pct012j092 variable in sf12010880us29 dataset :

   89 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,963       89.63       89.63
          1 |        561        5.61       95.24
          2 |        203        2.03       97.27
          3 |         67        0.67       97.94
          4 |         47        0.47       98.41
          5 |         32        0.32       98.73
          6 |         25        0.25       98.98
          7 |         20        0.20       99.18
          8 |         13        0.13       99.31
          9 |         17        0.17       99.48
         10 |         10        0.10       99.58
         11 |          5        0.05       99.63
         12 |          5        0.05       99.68
         13 |         10        0.10       99.78
         14 |          2        0.02       99.80
         15 |          2        0.02       99.82
         16 |          3        0.03       99.85
         17 |          1        0.01       99.86
         18 |          3        0.03       99.89
         19 |          1        0.01       99.90
         20 |          4        0.04       99.94
         21 |          2        0.02       99.96
         25 |          2        0.02       99.98
         34 |          1        0.01       99.99
         35 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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