Frequencies for first 10,000 rows of pct012o049 variable in sf12010860us34 dataset :

   46 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,985       69.85       69.85
          1 |      1,478       14.78       84.63
          2 |        672        6.72       91.35
          3 |        345        3.45       94.80
          4 |        198        1.98       96.78
          5 |        124        1.24       98.02
          6 |         69        0.69       98.71
          7 |         40        0.40       99.11
          8 |         28        0.28       99.39
          9 |         21        0.21       99.60
         10 |          9        0.09       99.69
         11 |          8        0.08       99.77
         12 |          6        0.06       99.83
         13 |          5        0.05       99.88
         14 |          4        0.04       99.92
         15 |          2        0.02       99.94
         16 |          3        0.03       99.97
         20 |          1        0.01       99.98
         44 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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