Frequencies for first 10,000 rows of pct012k050 variable in sf12000860us26 dataset :

   47 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,770       87.70       87.70
          1 |        938        9.38       97.08
          2 |        184        1.84       98.92
          3 |         59        0.59       99.51
          4 |         18        0.18       99.69
          5 |          7        0.07       99.76
          6 |          5        0.05       99.81
          7 |          4        0.04       99.85
          8 |          1        0.01       99.86
          9 |          4        0.04       99.90
         13 |          1        0.01       99.91
         17 |          1        0.01       99.92
         21 |          1        0.01       99.93
         25 |          1        0.01       99.94
         28 |          1        0.01       99.95
         35 |          1        0.01       99.96
         39 |          1        0.01       99.97
         52 |          1        0.01       99.98
         55 |          1        0.01       99.99
         63 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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