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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,500       75.00       75.00
          1 |         36        0.36       75.36
          2 |         69        0.69       76.05
          3 |         64        0.64       76.69
          4 |         56        0.56       77.25
          5 |         56        0.56       77.81
          6 |         62        0.62       78.43
          7 |         75        0.75       79.18
          8 |         79        0.79       79.97
          9 |         92        0.92       80.89
         10 |         96        0.96       81.85
         11 |         96        0.96       82.81
         12 |        111        1.11       83.92
         13 |        111        1.11       85.03
         14 |        124        1.24       86.27
         15 |        100        1.00       87.27
         16 |        115        1.15       88.42
         17 |        120        1.20       89.62
         18 |        104        1.04       90.66
         19 |         93        0.93       91.59
         20 |         97        0.97       92.56
         21 |         93        0.93       93.49
         22 |         75        0.75       94.24
         23 |         82        0.82       95.06
         24 |         62        0.62       95.68
         25 |         68        0.68       96.36
         26 |         74        0.74       97.10
         27 |         51        0.51       97.61
         28 |         37        0.37       97.98
         29 |         35        0.35       98.33
         30 |         31        0.31       98.64
         31 |         21        0.21       98.85
         32 |         23        0.23       99.08
         33 |         16        0.16       99.24
         34 |         10        0.10       99.34
         35 |         12        0.12       99.46
         36 |          8        0.08       99.54
         37 |          7        0.07       99.61
         38 |          8        0.08       99.69
         39 |          5        0.05       99.74
         40 |          5        0.05       99.79
         41 |          1        0.01       99.80
         42 |          4        0.04       99.84
         43 |          1        0.01       99.85
         44 |          6        0.06       99.91
         45 |          4        0.04       99.95
         46 |          1        0.01       99.96
         47 |          1        0.01       99.97
         50 |          1        0.01       99.98
         51 |          1        0.01       99.99
         53 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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