Frequencies for first 10,000 rows of pct012o044 variable in sf12010860us34 dataset :

   41 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,072       70.72       70.72
          1 |      1,437       14.37       85.09
          2 |        621        6.21       91.30
          3 |        313        3.13       94.43
          4 |        192        1.92       96.35
          5 |        134        1.34       97.69
          6 |         89        0.89       98.58
          7 |         58        0.58       99.16
          8 |         29        0.29       99.45
          9 |         17        0.17       99.62
         10 |         10        0.10       99.72
         11 |          6        0.06       99.78
         12 |          6        0.06       99.84
         13 |          2        0.02       99.86
         14 |          3        0.03       99.89
         15 |          3        0.03       99.92
         16 |          1        0.01       99.93
         17 |          2        0.02       99.95
         18 |          1        0.01       99.96
         20 |          1        0.01       99.97
         21 |          1        0.01       99.98
         37 |          1        0.01       99.99
         45 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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