Frequencies for first 10,000 rows of pct012c043 variable in sf12010860us22 dataset :

   40 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,299       82.99       82.99
          1 |      1,031       10.31       93.30
          2 |        340        3.40       96.70
          3 |        144        1.44       98.14
          4 |         76        0.76       98.90
          5 |         37        0.37       99.27
          6 |         23        0.23       99.50
          7 |         14        0.14       99.64
          8 |          7        0.07       99.71
          9 |          4        0.04       99.75
         10 |          4        0.04       99.79
         11 |          3        0.03       99.82
         12 |          1        0.01       99.83
         13 |          2        0.02       99.85
         14 |          3        0.03       99.88
         15 |          1        0.01       99.89
         21 |          2        0.02       99.91
         22 |          1        0.01       99.92
         24 |          1        0.01       99.93
         26 |          1        0.01       99.94
         35 |          1        0.01       99.95
         36 |          1        0.01       99.96
         49 |          1        0.01       99.97
         53 |          1        0.01       99.98
         57 |          1        0.01       99.99
         60 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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