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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,155       71.55       71.55
          1 |         32        0.32       71.87
          2 |         75        0.75       72.62
          3 |         59        0.59       73.21
          4 |         64        0.64       73.85
          5 |         53        0.53       74.38
          6 |         66        0.66       75.04
          7 |         75        0.75       75.79
          8 |        103        1.03       76.82
          9 |         94        0.94       77.76
         10 |        114        1.14       78.90
         11 |        115        1.15       80.05
         12 |        112        1.12       81.17
         13 |        142        1.42       82.59
         14 |        116        1.16       83.75
         15 |        125        1.25       85.00
         16 |        123        1.23       86.23
         17 |        122        1.22       87.45
         18 |        117        1.17       88.62
         19 |        114        1.14       89.76
         20 |        120        1.20       90.96
         21 |         84        0.84       91.80
         22 |        119        1.19       92.99
         23 |         85        0.85       93.84
         24 |        100        1.00       94.84
         25 |         64        0.64       95.48
         26 |         54        0.54       96.02
         27 |         46        0.46       96.48
         28 |         46        0.46       96.94
         29 |         53        0.53       97.47
         30 |         49        0.49       97.96
         31 |         30        0.30       98.26
         32 |         39        0.39       98.65
         33 |         29        0.29       98.94
         34 |         22        0.22       99.16
         35 |         21        0.21       99.37
         36 |          9        0.09       99.46
         37 |          9        0.09       99.55
         38 |         10        0.10       99.65
         39 |          5        0.05       99.70
         40 |         11        0.11       99.81
         41 |          3        0.03       99.84
         42 |          2        0.02       99.86
         43 |          2        0.02       99.88
         44 |          4        0.04       99.92
         45 |          5        0.05       99.97
         46 |          1        0.01       99.98
         50 |          1        0.01       99.99
         56 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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