Frequencies for first 10,000 rows of pct012n141 variable in sf12010860us33 dataset :

   34 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,029       90.29       90.29
          1 |        607        6.07       96.36
          2 |        171        1.71       98.07
          3 |         74        0.74       98.81
          4 |         34        0.34       99.15
          5 |         22        0.22       99.37
          6 |         21        0.21       99.58
          7 |          6        0.06       99.64
          8 |          9        0.09       99.73
          9 |          1        0.01       99.74
         10 |          2        0.02       99.76
         12 |          8        0.08       99.84
         13 |          5        0.05       99.89
         14 |          1        0.01       99.90
         15 |          1        0.01       99.91
         16 |          1        0.01       99.92
         19 |          2        0.02       99.94
         21 |          1        0.01       99.95
         33 |          1        0.01       99.96
         40 |          2        0.02       99.98
         43 |          1        0.01       99.99
         54 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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