Frequencies for first 10,000 rows of pct012k141 variable in sf12000860us26 dataset :

   34 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,785       87.85       87.85
          1 |        885        8.85       96.70
          2 |        204        2.04       98.74
          3 |         68        0.68       99.42
          4 |         17        0.17       99.59
          5 |         12        0.12       99.71
          6 |          7        0.07       99.78
          7 |          2        0.02       99.80
          8 |          3        0.03       99.83
          9 |          2        0.02       99.85
         10 |          2        0.02       99.87
         11 |          2        0.02       99.89
         12 |          1        0.01       99.90
         16 |          1        0.01       99.91
         18 |          1        0.01       99.92
         19 |          1        0.01       99.93
         24 |          1        0.01       99.94
         33 |          1        0.01       99.95
         38 |          2        0.02       99.97
         46 |          1        0.01       99.98
         56 |          1        0.01       99.99
         82 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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