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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,299       72.99       72.99
          1 |         45        0.45       73.44
          2 |         71        0.71       74.15
          3 |         42        0.42       74.57
          4 |         73        0.73       75.30
          5 |         66        0.66       75.96
          6 |         78        0.78       76.74
          7 |        105        1.05       77.79
          8 |         91        0.91       78.70
          9 |         90        0.90       79.60
         10 |         92        0.92       80.52
         11 |        104        1.04       81.56
         12 |        100        1.00       82.56
         13 |        148        1.48       84.04
         14 |        116        1.16       85.20
         15 |        118        1.18       86.38
         16 |        115        1.15       87.53
         17 |        116        1.16       88.69
         18 |         95        0.95       89.64
         19 |        124        1.24       90.88
         20 |         99        0.99       91.87
         21 |        103        1.03       92.90
         22 |        101        1.01       93.91
         23 |         79        0.79       94.70
         24 |         85        0.85       95.55
         25 |         64        0.64       96.19
         26 |         66        0.66       96.85
         27 |         58        0.58       97.43
         28 |         52        0.52       97.95
         29 |         32        0.32       98.27
         30 |         34        0.34       98.61
         31 |         25        0.25       98.86
         32 |         18        0.18       99.04
         33 |         20        0.20       99.24
         34 |          7        0.07       99.31
         35 |         13        0.13       99.44
         36 |         11        0.11       99.55
         37 |         13        0.13       99.68
         38 |          8        0.08       99.76
         39 |          5        0.05       99.81
         40 |          4        0.04       99.85
         41 |          1        0.01       99.86
         42 |          3        0.03       99.89
         43 |          3        0.03       99.92
         44 |          1        0.01       99.93
         46 |          2        0.02       99.95
         49 |          1        0.01       99.96
         50 |          1        0.01       99.97
         51 |          1        0.01       99.98
         61 |          1        0.01       99.99
         75 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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