Frequencies for first 10,000 rows of pct012c153 variable in sf12000860us18 dataset :

   46 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,552       85.52       85.52
          1 |      1,002       10.02       95.54
          2 |        286        2.86       98.40
          3 |         81        0.81       99.21
          4 |         35        0.35       99.56
          5 |         17        0.17       99.73
          6 |          5        0.05       99.78
          7 |          5        0.05       99.83
          8 |          2        0.02       99.85
         11 |          2        0.02       99.87
         12 |          1        0.01       99.88
         13 |          1        0.01       99.89
         14 |          1        0.01       99.90
         15 |          1        0.01       99.91
         16 |          1        0.01       99.92
         22 |          1        0.01       99.93
         32 |          1        0.01       99.94
         34 |          1        0.01       99.95
         35 |          1        0.01       99.96
         41 |          1        0.01       99.97
         56 |          1        0.01       99.98
         65 |          1        0.01       99.99
         77 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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