Frequencies for first 10,000 rows of pct012c017 variable in sf12000860us18 dataset :

   14 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,562       85.62       85.62
          1 |      1,027       10.27       95.89
          2 |        206        2.06       97.95
          3 |         75        0.75       98.70
          4 |         43        0.43       99.13
          5 |         24        0.24       99.37
          6 |         10        0.10       99.47
          7 |         13        0.13       99.60
          8 |          7        0.07       99.67
          9 |          8        0.08       99.75
         10 |          5        0.05       99.80
         11 |          4        0.04       99.84
         12 |          1        0.01       99.85
         13 |          2        0.02       99.87
         14 |          2        0.02       99.89
         16 |          1        0.01       99.90
         23 |          1        0.01       99.91
         25 |          1        0.01       99.92
         38 |          1        0.01       99.93
         40 |          1        0.01       99.94
         44 |          1        0.01       99.95
         50 |          1        0.01       99.96
         54 |          1        0.01       99.97
         68 |          1        0.01       99.98
         77 |          1        0.01       99.99
         81 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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