Frequencies for first 10,000 rows of pct012k120 variable in sf12000860us26 dataset :

   13 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,899       88.99       88.99
          1 |        794        7.94       96.93
          2 |        188        1.88       98.81
          3 |         54        0.54       99.35
          4 |         22        0.22       99.57
          5 |         14        0.14       99.71
          6 |          2        0.02       99.73
          7 |          4        0.04       99.77
          8 |          3        0.03       99.80
          9 |          2        0.02       99.82
         10 |          1        0.01       99.83
         11 |          1        0.01       99.84
         12 |          3        0.03       99.87
         14 |          2        0.02       99.89
         15 |          1        0.01       99.90
         27 |          1        0.01       99.91
         28 |          1        0.01       99.92
         29 |          1        0.01       99.93
         33 |          1        0.01       99.94
         34 |          1        0.01       99.95
         52 |          1        0.01       99.96
         55 |          1        0.01       99.97
         65 |          1        0.01       99.98
         69 |          1        0.01       99.99
         84 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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