Frequencies for first 10,000 rows of pct012n148 variable in sf12000860us29 dataset :

   41 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,310       93.10       93.10
          1 |        457        4.57       97.67
          2 |        116        1.16       98.83
          3 |         41        0.41       99.24
          4 |         31        0.31       99.55
          5 |         11        0.11       99.66
          6 |          5        0.05       99.71
          7 |          4        0.04       99.75
          8 |          3        0.03       99.78
          9 |          2        0.02       99.80
         10 |          2        0.02       99.82
         11 |          3        0.03       99.85
         13 |          3        0.03       99.88
         14 |          2        0.02       99.90
         15 |          1        0.01       99.91
         16 |          3        0.03       99.94
         19 |          1        0.01       99.95
         23 |          1        0.01       99.96
         25 |          1        0.01       99.97
         26 |          1        0.01       99.98
         31 |          1        0.01       99.99
         41 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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