Frequencies for first 10,000 rows of pct012n050 variable in sf12000860us29 dataset :

   47 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,387       93.87       93.87
          1 |        428        4.28       98.15
          2 |        106        1.06       99.21
          3 |         28        0.28       99.49
          4 |         15        0.15       99.64
          5 |          8        0.08       99.72
          6 |         10        0.10       99.82
          7 |          2        0.02       99.84
          8 |          2        0.02       99.86
          9 |          2        0.02       99.88
         10 |          1        0.01       99.89
         12 |          5        0.05       99.94
         16 |          1        0.01       99.95
         17 |          1        0.01       99.96
         18 |          1        0.01       99.97
         23 |          1        0.01       99.98
         29 |          1        0.01       99.99
         34 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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