Frequencies for first 10,000 rows of pct012n052 variable in sf12010860us33 dataset :

   49 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,207       92.07       92.07
          1 |        530        5.30       97.37
          2 |        140        1.40       98.77
          3 |         42        0.42       99.19
          4 |         27        0.27       99.46
          5 |         17        0.17       99.63
          6 |          8        0.08       99.71
          7 |          8        0.08       99.79
          8 |          3        0.03       99.82
          9 |          2        0.02       99.84
         10 |          1        0.01       99.85
         11 |          2        0.02       99.87
         12 |          3        0.03       99.90
         13 |          1        0.01       99.91
         15 |          1        0.01       99.92
         16 |          3        0.03       99.95
         21 |          1        0.01       99.96
         26 |          1        0.01       99.97
         36 |          1        0.01       99.98
         38 |          1        0.01       99.99
         49 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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