Frequencies for first 10,000 rows of pct0030012 variable in sf12010880us15 dataset :

  (400-999) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,023       80.23       80.23
          1 |        855        8.55       88.78
          2 |        364        3.64       92.42
          3 |        242        2.42       94.84
          4 |        165        1.65       96.49
          5 |        112        1.12       97.61
          6 |         59        0.59       98.20
          7 |         43        0.43       98.63
          8 |         33        0.33       98.96
          9 |         30        0.30       99.26
         10 |         19        0.19       99.45
         11 |         14        0.14       99.59
         12 |         13        0.13       99.72
         13 |          9        0.09       99.81
         14 |          5        0.05       99.86
         15 |          4        0.04       99.90
         16 |          3        0.03       99.93
         17 |          1        0.01       99.94
         21 |          1        0.01       99.95
         22 |          1        0.01       99.96
         24 |          1        0.01       99.97
         25 |          1        0.01       99.98
         26 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017