Frequencies for first 10,000 rows of pct012c012 variable in sf12000860us18 dataset :

    9 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,498       84.98       84.98
          1 |        997        9.97       94.95
          2 |        269        2.69       97.64
          3 |         92        0.92       98.56
          4 |         54        0.54       99.10
          5 |         25        0.25       99.35
          6 |         19        0.19       99.54
          7 |          6        0.06       99.60
          8 |          5        0.05       99.65
          9 |          6        0.06       99.71
         10 |          4        0.04       99.75
         11 |          4        0.04       99.79
         12 |          1        0.01       99.80
         13 |          3        0.03       99.83
         14 |          4        0.04       99.87
         15 |          1        0.01       99.88
         16 |          1        0.01       99.89
         19 |          1        0.01       99.90
         21 |          1        0.01       99.91
         33 |          2        0.02       99.93
         36 |          1        0.01       99.94
         44 |          1        0.01       99.95
         51 |          1        0.01       99.96
         53 |          1        0.01       99.97
         74 |          1        0.01       99.98
         93 |          1        0.01       99.99
        110 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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