Frequencies for first 10,000 rows of pct012n135 variable in sf12010860us33 dataset :

   28 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,938       89.38       89.38
          1 |        639        6.39       95.77
          2 |        190        1.90       97.67
          3 |         90        0.90       98.57
          4 |         36        0.36       98.93
          5 |         30        0.30       99.23
          6 |         15        0.15       99.38
          7 |         18        0.18       99.56
          8 |          5        0.05       99.61
          9 |          9        0.09       99.70
         10 |          1        0.01       99.71
         11 |          4        0.04       99.75
         12 |          4        0.04       99.79
         13 |          3        0.03       99.82
         14 |          3        0.03       99.85
         15 |          2        0.02       99.87
         17 |          1        0.01       99.88
         18 |          1        0.01       99.89
         23 |          1        0.01       99.90
         25 |          1        0.01       99.91
         26 |          1        0.01       99.92
         27 |          1        0.01       99.93
         28 |          1        0.01       99.94
         29 |          1        0.01       99.95
         33 |          1        0.01       99.96
         47 |          1        0.01       99.97
         48 |          1        0.01       99.98
         55 |          1        0.01       99.99
         57 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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