Frequencies for first 10,000 rows of pct012o161 variable in sf12000860us30 dataset :

   54 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,878       78.78       78.78
          1 |      1,217       12.17       90.95
          2 |        428        4.28       95.23
          3 |        179        1.79       97.02
          4 |         97        0.97       97.99
          5 |         60        0.60       98.59
          6 |         40        0.40       98.99
          7 |         19        0.19       99.18
          8 |         18        0.18       99.36
          9 |         20        0.20       99.56
         10 |          9        0.09       99.65
         11 |          9        0.09       99.74
         12 |          3        0.03       99.77
         13 |          6        0.06       99.83
         14 |          5        0.05       99.88
         15 |          5        0.05       99.93
         16 |          2        0.02       99.95
         21 |          1        0.01       99.96
         22 |          1        0.01       99.97
         25 |          1        0.01       99.98
         27 |          1        0.01       99.99
         43 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017