Frequencies for first 10,000 rows of pct012k016 variable in sf12000860us26 dataset :

   13 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,850       88.50       88.50
          1 |        847        8.47       96.97
          2 |        180        1.80       98.77
          3 |         49        0.49       99.26
          4 |         24        0.24       99.50
          5 |          8        0.08       99.58
          6 |          8        0.08       99.66
          7 |          6        0.06       99.72
          8 |          5        0.05       99.77
          9 |          2        0.02       99.79
         10 |          3        0.03       99.82
         11 |          7        0.07       99.89
         14 |          1        0.01       99.90
         18 |          1        0.01       99.91
         21 |          1        0.01       99.92
         22 |          1        0.01       99.93
         39 |          1        0.01       99.94
         42 |          1        0.01       99.95
         45 |          1        0.01       99.96
         62 |          1        0.01       99.97
         70 |          1        0.01       99.98
         88 |          1        0.01       99.99
         96 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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