Frequencies for first 10,000 rows of pct012l083 variable in sf12000860us27 dataset :

   80 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,218       92.18       92.18
          1 |        472        4.72       96.90
          2 |        159        1.59       98.49
          3 |         54        0.54       99.03
          4 |         24        0.24       99.27
          5 |         21        0.21       99.48
          6 |         17        0.17       99.65
          7 |          6        0.06       99.71
          8 |          5        0.05       99.76
          9 |          2        0.02       99.78
         10 |          3        0.03       99.81
         11 |          4        0.04       99.85
         12 |          5        0.05       99.90
         14 |          2        0.02       99.92
         15 |          1        0.01       99.93
         19 |          1        0.01       99.94
         22 |          2        0.02       99.96
         38 |          1        0.01       99.97
         39 |          1        0.01       99.98
         64 |          1        0.01       99.99
         85 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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