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

         p6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,522       75.22       75.22
          1 |         30        0.30       75.52
          2 |         66        0.66       76.18
          3 |         61        0.61       76.79
          4 |         60        0.60       77.39
          5 |         60        0.60       77.99
          6 |         67        0.67       78.66
          7 |         78        0.78       79.44
          8 |         81        0.81       80.25
          9 |         79        0.79       81.04
         10 |         91        0.91       81.95
         11 |        105        1.05       83.00
         12 |        100        1.00       84.00
         13 |         95        0.95       84.95
         14 |        110        1.10       86.05
         15 |        109        1.09       87.14
         16 |        128        1.28       88.42
         17 |        104        1.04       89.46
         18 |         96        0.96       90.42
         19 |        108        1.08       91.50
         20 |         91        0.91       92.41
         21 |         96        0.96       93.37
         22 |         88        0.88       94.25
         23 |         77        0.77       95.02
         24 |         68        0.68       95.70
         25 |         60        0.60       96.30
         26 |         69        0.69       96.99
         27 |         42        0.42       97.41
         28 |         40        0.40       97.81
         29 |         34        0.34       98.15
         30 |         33        0.33       98.48
         31 |         35        0.35       98.83
         32 |         30        0.30       99.13
         33 |         14        0.14       99.27
         34 |         10        0.10       99.37
         35 |         10        0.10       99.47
         36 |          8        0.08       99.55
         37 |          7        0.07       99.62
         38 |          7        0.07       99.69
         39 |          5        0.05       99.74
         40 |          3        0.03       99.77
         41 |          7        0.07       99.84
         42 |          3        0.03       99.87
         43 |          1        0.01       99.88
         44 |          4        0.04       99.92
         45 |          2        0.02       99.94
         46 |          2        0.02       99.96
         51 |          1        0.01       99.97
         52 |          1        0.01       99.98
         67 |          1        0.01       99.99
         77 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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