Frequencies for first 10,000 rows of pct012o149 variable in sf12010860us34 dataset :

   42 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,925       69.25       69.25
          1 |      1,406       14.06       83.31
          2 |        647        6.47       89.78
          3 |        349        3.49       93.27
          4 |        231        2.31       95.58
          5 |        134        1.34       96.92
          6 |        111        1.11       98.03
          7 |         58        0.58       98.61
          8 |         44        0.44       99.05
          9 |         21        0.21       99.26
         10 |         20        0.20       99.46
         11 |         18        0.18       99.64
         12 |          6        0.06       99.70
         13 |          8        0.08       99.78
         14 |          4        0.04       99.82
         15 |          6        0.06       99.88
         16 |          2        0.02       99.90
         17 |          2        0.02       99.92
         18 |          2        0.02       99.94
         22 |          2        0.02       99.96
         26 |          1        0.01       99.97
         27 |          1        0.01       99.98
         34 |          1        0.01       99.99
         58 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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