Frequencies for first 10,000 rows of pct012n162 variable in sf12000860us29 dataset :

   55 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,578       95.78       95.78
          1 |        306        3.06       98.84
          2 |         64        0.64       99.48
          3 |         22        0.22       99.70
          4 |          9        0.09       99.79
          5 |          5        0.05       99.84
          6 |          3        0.03       99.87
          7 |          2        0.02       99.89
          8 |          2        0.02       99.91
          9 |          4        0.04       99.95
         10 |          1        0.01       99.96
         15 |          1        0.01       99.97
         17 |          1        0.01       99.98
         19 |          1        0.01       99.99
         22 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017