Frequencies for first 10,000 rows of p3 variable in miper dataset :

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,435       74.35       74.35
          1 |         44        0.44       74.79
          2 |         61        0.61       75.40
          3 |         35        0.35       75.75
          4 |         47        0.47       76.22
          5 |         60        0.60       76.82
          6 |         50        0.50       77.32
          7 |         56        0.56       77.88
          8 |         71        0.71       78.59
          9 |         88        0.88       79.47
         10 |         94        0.94       80.41
         11 |        104        1.04       81.45
         12 |        103        1.03       82.48
         13 |        103        1.03       83.51
         14 |        103        1.03       84.54
         15 |        114        1.14       85.68
         16 |        123        1.23       86.91
         17 |        109        1.09       88.00
         18 |         93        0.93       88.93
         19 |        121        1.21       90.14
         20 |         94        0.94       91.08
         21 |        108        1.08       92.16
         22 |        102        1.02       93.18
         23 |         92        0.92       94.10
         24 |         90        0.90       95.00
         25 |         63        0.63       95.63
         26 |         63        0.63       96.26
         27 |         62        0.62       96.88
         28 |         45        0.45       97.33
         29 |         39        0.39       97.72
         30 |         47        0.47       98.19
         31 |         26        0.26       98.45
         32 |         20        0.20       98.65
         33 |         17        0.17       98.82
         34 |         18        0.18       99.00
         35 |         16        0.16       99.16
         36 |         15        0.15       99.31
         37 |         13        0.13       99.44
         38 |          6        0.06       99.50
         39 |          6        0.06       99.56
         40 |          9        0.09       99.65
         41 |          9        0.09       99.74
         42 |          6        0.06       99.80
         43 |          3        0.03       99.83
         44 |          2        0.02       99.85
         45 |          4        0.04       99.89
         46 |          3        0.03       99.92
         47 |          1        0.01       99.93
         49 |          1        0.01       99.94
         50 |          1        0.01       99.95
         51 |          1        0.01       99.96
         54 |          1        0.01       99.97
         60 |          1        0.01       99.98
         63 |          1        0.01       99.99
         65 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016