Frequencies for first 10,000 rows of pct012k115 variable in sf12000860us26 dataset :

    8 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,836       88.36       88.36
          1 |        828        8.28       96.64
          2 |        178        1.78       98.42
          3 |         64        0.64       99.06
          4 |         33        0.33       99.39
          5 |         21        0.21       99.60
          6 |          7        0.07       99.67
          7 |          3        0.03       99.70
          8 |          7        0.07       99.77
          9 |          4        0.04       99.81
         10 |          2        0.02       99.83
         11 |          1        0.01       99.84
         12 |          1        0.01       99.85
         13 |          2        0.02       99.87
         15 |          3        0.03       99.90
         23 |          1        0.01       99.91
         35 |          1        0.01       99.92
         38 |          1        0.01       99.93
         40 |          1        0.01       99.94
         44 |          1        0.01       99.95
         51 |          1        0.01       99.96
         60 |          1        0.01       99.97
         67 |          1        0.01       99.98
         72 |          1        0.01       99.99
         80 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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