Frequencies for first 10,000 rows of pct012n125 variable in sf12010880us33 dataset :

   18 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,998       89.98       89.98
          1 |        637        6.37       96.35
          2 |        181        1.81       98.16
          3 |         75        0.75       98.91
          4 |         40        0.40       99.31
          5 |         20        0.20       99.51
          6 |          9        0.09       99.60
          7 |          9        0.09       99.69
          8 |          3        0.03       99.72
          9 |          1        0.01       99.73
         10 |          5        0.05       99.78
         11 |          3        0.03       99.81
         12 |          4        0.04       99.85
         13 |          1        0.01       99.86
         14 |          1        0.01       99.87
         15 |          2        0.02       99.89
         16 |          2        0.02       99.91
         17 |          2        0.02       99.93
         18 |          1        0.01       99.94
         19 |          1        0.01       99.95
         23 |          1        0.01       99.96
         37 |          1        0.01       99.97
         39 |          1        0.01       99.98
         43 |          1        0.01       99.99
         71 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017