Frequencies for first 10,000 rows of pct012n129 variable in sf12000860us29 dataset :

   22 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,194       91.94       91.94
          1 |        507        5.07       97.01
          2 |        137        1.37       98.38
          3 |         53        0.53       98.91
          4 |         37        0.37       99.28
          5 |         18        0.18       99.46
          6 |         13        0.13       99.59
          7 |          3        0.03       99.62
          8 |          4        0.04       99.66
          9 |          8        0.08       99.74
         10 |          2        0.02       99.76
         11 |          4        0.04       99.80
         12 |          1        0.01       99.81
         13 |          1        0.01       99.82
         15 |          1        0.01       99.83
         16 |          1        0.01       99.84
         20 |          2        0.02       99.86
         21 |          2        0.02       99.88
         23 |          2        0.02       99.90
         25 |          1        0.01       99.91
         28 |          1        0.01       99.92
         29 |          1        0.01       99.93
         31 |          1        0.01       99.94
         32 |          1        0.01       99.95
         37 |          1        0.01       99.96
         38 |          1        0.01       99.97
         48 |          2        0.02       99.99
         59 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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