Frequencies for first 10,000 rows of p6 variable in miper dataset :

         p6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,518       75.18       75.18
          1 |         36        0.36       75.54
          2 |         72        0.72       76.26
          3 |         56        0.56       76.82
          4 |         57        0.57       77.39
          5 |         61        0.61       78.00
          6 |         66        0.66       78.66
          7 |         75        0.75       79.41
          8 |         81        0.81       80.22
          9 |         81        0.81       81.03
         10 |         88        0.88       81.91
         11 |        107        1.07       82.98
         12 |        105        1.05       84.03
         13 |         98        0.98       85.01
         14 |        101        1.01       86.02
         15 |        116        1.16       87.18
         16 |        117        1.17       88.35
         17 |        111        1.11       89.46
         18 |        133        1.33       90.79
         19 |        102        1.02       91.81
         20 |         91        0.91       92.72
         21 |         93        0.93       93.65
         22 |         81        0.81       94.46
         23 |         72        0.72       95.18
         24 |         61        0.61       95.79
         25 |         65        0.65       96.44
         26 |         47        0.47       96.91
         27 |         58        0.58       97.49
         28 |         46        0.46       97.95
         29 |         32        0.32       98.27
         30 |         28        0.28       98.55
         31 |         23        0.23       98.78
         32 |         21        0.21       98.99
         33 |          9        0.09       99.08
         34 |         13        0.13       99.21
         35 |         11        0.11       99.32
         36 |          4        0.04       99.36
         37 |         16        0.16       99.52
         38 |         11        0.11       99.63
         39 |          5        0.05       99.68
         40 |          8        0.08       99.76
         41 |          5        0.05       99.81
         42 |          2        0.02       99.83
         43 |          1        0.01       99.84
         45 |          2        0.02       99.86
         46 |          1        0.01       99.87
         47 |          3        0.03       99.90
         48 |          3        0.03       99.93
         49 |          2        0.02       99.95
         50 |          1        0.01       99.96
         53 |          1        0.01       99.97
         55 |          1        0.01       99.98
         58 |          1        0.01       99.99
         70 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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