Frequencies for first 10,000 rows of pct012n029 variable in sf12000860us29 dataset :

   26 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,280       92.80       92.80
          1 |        446        4.46       97.26
          2 |        120        1.20       98.46
          3 |         57        0.57       99.03
          4 |         31        0.31       99.34
          5 |         23        0.23       99.57
          6 |          7        0.07       99.64
          7 |          8        0.08       99.72
          8 |          3        0.03       99.75
          9 |          6        0.06       99.81
         10 |          4        0.04       99.85
         13 |          2        0.02       99.87
         15 |          4        0.04       99.91
         16 |          2        0.02       99.93
         17 |          2        0.02       99.95
         21 |          1        0.01       99.96
         24 |          1        0.01       99.97
         25 |          1        0.01       99.98
         26 |          1        0.01       99.99
         39 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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