Frequencies for first 10,000 rows of pct012l085 variable in sf12000860us27 dataset :

   82 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,380       93.80       93.80
          1 |        421        4.21       98.01
          2 |        101        1.01       99.02
          3 |         40        0.40       99.42
          4 |         17        0.17       99.59
          5 |         17        0.17       99.76
          6 |          8        0.08       99.84
          7 |          3        0.03       99.87
          8 |          1        0.01       99.88
          9 |          1        0.01       99.89
         10 |          2        0.02       99.91
         11 |          1        0.01       99.92
         12 |          2        0.02       99.94
         14 |          1        0.01       99.95
         15 |          2        0.02       99.97
         23 |          1        0.01       99.98
         33 |          1        0.01       99.99
         55 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017