Frequencies for first 10,000 rows of pct012n154 variable in sf12010860us33 dataset :

   47 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,133       91.33       91.33
          1 |        572        5.72       97.05
          2 |        152        1.52       98.57
          3 |         43        0.43       99.00
          4 |         30        0.30       99.30
          5 |         19        0.19       99.49
          6 |         13        0.13       99.62
          7 |          4        0.04       99.66
          8 |          8        0.08       99.74
          9 |          5        0.05       99.79
         10 |          4        0.04       99.83
         12 |          2        0.02       99.85
         13 |          2        0.02       99.87
         16 |          2        0.02       99.89
         17 |          1        0.01       99.90
         18 |          3        0.03       99.93
         21 |          1        0.01       99.94
         22 |          1        0.01       99.95
         24 |          1        0.01       99.96
         30 |          1        0.01       99.97
         37 |          1        0.01       99.98
         41 |          1        0.01       99.99
         57 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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