Frequencies for first 10,000 rows of pct012n171 variable in sf12010860us33 dataset :

   64 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,600       96.00       96.00
          1 |        310        3.10       99.10
          2 |         43        0.43       99.53
          3 |         17        0.17       99.70
          4 |         12        0.12       99.82
          5 |          5        0.05       99.87
          6 |          2        0.02       99.89
          8 |          4        0.04       99.93
         10 |          2        0.02       99.95
         12 |          1        0.01       99.96
         14 |          1        0.01       99.97
         15 |          1        0.01       99.98
         16 |          1        0.01       99.99
         22 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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