Frequencies for first 10,000 rows of pct012n164 variable in sf12000860us29 dataset :

   57 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,619       96.19       96.19
          1 |        282        2.82       99.01
          2 |         51        0.51       99.52
          3 |         17        0.17       99.69
          4 |         14        0.14       99.83
          5 |          5        0.05       99.88
          6 |          2        0.02       99.90
          7 |          5        0.05       99.95
          8 |          1        0.01       99.96
         12 |          1        0.01       99.97
         14 |          1        0.01       99.98
         19 |          1        0.01       99.99
         23 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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