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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,359       73.59       73.59
          1 |         44        0.44       74.03
          2 |         63        0.63       74.66
          3 |         66        0.66       75.32
          4 |         65        0.65       75.97
          5 |         76        0.76       76.73
          6 |         62        0.62       77.35
          7 |         78        0.78       78.13
          8 |         94        0.94       79.07
          9 |        108        1.08       80.15
         10 |        110        1.10       81.25
         11 |         99        0.99       82.24
         12 |        115        1.15       83.39
         13 |         96        0.96       84.35
         14 |        122        1.22       85.57
         15 |        100        1.00       86.57
         16 |        128        1.28       87.85
         17 |        142        1.42       89.27
         18 |         92        0.92       90.19
         19 |        117        1.17       91.36
         20 |        103        1.03       92.39
         21 |         89        0.89       93.28
         22 |         90        0.90       94.18
         23 |         78        0.78       94.96
         24 |         63        0.63       95.59
         25 |         73        0.73       96.32
         26 |         65        0.65       96.97
         27 |         49        0.49       97.46
         28 |         46        0.46       97.92
         29 |         34        0.34       98.26
         30 |         32        0.32       98.58
         31 |         16        0.16       98.74
         32 |         24        0.24       98.98
         33 |         16        0.16       99.14
         34 |          9        0.09       99.23
         35 |         14        0.14       99.37
         36 |          8        0.08       99.45
         37 |         13        0.13       99.58
         38 |          6        0.06       99.64
         39 |          6        0.06       99.70
         40 |          3        0.03       99.73
         41 |          4        0.04       99.77
         42 |          4        0.04       99.81
         44 |          2        0.02       99.83
         45 |          2        0.02       99.85
         46 |          2        0.02       99.87
         47 |          4        0.04       99.91
         48 |          1        0.01       99.92
         52 |          1        0.01       99.93
         53 |          1        0.01       99.94
         55 |          3        0.03       99.97
         58 |          1        0.01       99.98
         60 |          1        0.01       99.99
         61 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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