Frequencies for first 10,000 rows of pct012o150 variable in sf12000860us30 dataset :

   43 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,253       72.53       72.53
          1 |      1,336       13.36       85.89
          2 |        538        5.38       91.27
          3 |        286        2.86       94.13
          4 |        150        1.50       95.63
          5 |        121        1.21       96.84
          6 |         69        0.69       97.53
          7 |         47        0.47       98.00
          8 |         34        0.34       98.34
          9 |         36        0.36       98.70
         10 |         17        0.17       98.87
         11 |         20        0.20       99.07
         12 |         18        0.18       99.25
         13 |         13        0.13       99.38
         14 |         13        0.13       99.51
         15 |         11        0.11       99.62
         16 |          5        0.05       99.67
         17 |          4        0.04       99.71
         18 |          3        0.03       99.74
         19 |          7        0.07       99.81
         20 |          2        0.02       99.83
         21 |          2        0.02       99.85
         22 |          1        0.01       99.86
         23 |          2        0.02       99.88
         25 |          2        0.02       99.90
         26 |          1        0.01       99.91
         28 |          1        0.01       99.92
         29 |          3        0.03       99.95
         31 |          2        0.02       99.97
         35 |          1        0.01       99.98
         43 |          1        0.01       99.99
         67 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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