Frequencies for first 10,000 rows of pct012k033 variable in sf12000860us26 dataset :

   30 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,794       87.94       87.94
          1 |        863        8.63       96.57
          2 |        212        2.12       98.69
          3 |         57        0.57       99.26
          4 |         24        0.24       99.50
          5 |         20        0.20       99.70
          6 |          5        0.05       99.75
          7 |          8        0.08       99.83
          8 |          1        0.01       99.84
          9 |          3        0.03       99.87
         10 |          1        0.01       99.88
         11 |          1        0.01       99.89
         16 |          1        0.01       99.90
         19 |          1        0.01       99.91
         22 |          1        0.01       99.92
         24 |          1        0.01       99.93
         25 |          2        0.02       99.95
         38 |          1        0.01       99.96
         46 |          1        0.01       99.97
         59 |          1        0.01       99.98
         65 |          1        0.01       99.99
         66 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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