Frequencies for first 10,000 rows of pct012n056 variable in sf12000860us29 dataset :

   53 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,540       95.40       95.40
          1 |        340        3.40       98.80
          2 |         61        0.61       99.41
          3 |         24        0.24       99.65
          4 |         17        0.17       99.82
          5 |          3        0.03       99.85
          6 |          5        0.05       99.90
          7 |          2        0.02       99.92
          8 |          2        0.02       99.94
         11 |          1        0.01       99.95
         12 |          3        0.03       99.98
         16 |          1        0.01       99.99
         24 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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