Frequencies for first 10,000 rows of p2 variable in miper dataset :

         p2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,100       61.00       61.00
          1 |         33        0.33       61.33
          2 |         73        0.73       62.06
          3 |         70        0.70       62.76
          4 |         70        0.70       63.46
          5 |         71        0.71       64.17
          6 |         96        0.96       65.13
          7 |        116        1.16       66.29
          8 |        127        1.27       67.56
          9 |        143        1.43       68.99
         10 |        164        1.64       70.63
         11 |        166        1.66       72.29
         12 |        161        1.61       73.90
         13 |        163        1.63       75.53
         14 |        182        1.82       77.35
         15 |        167        1.67       79.02
         16 |        208        2.08       81.10
         17 |        182        1.82       82.92
         18 |        180        1.80       84.72
         19 |        196        1.96       86.68
         20 |        171        1.71       88.39
         21 |        145        1.45       89.84
         22 |        152        1.52       91.36
         23 |        123        1.23       92.59
         24 |        112        1.12       93.71
         25 |        108        1.08       94.79
         26 |         94        0.94       95.73
         27 |         68        0.68       96.41
         28 |         66        0.66       97.07
         29 |         44        0.44       97.51
         30 |         37        0.37       97.88
         31 |         49        0.49       98.37
         32 |         31        0.31       98.68
         33 |         31        0.31       98.99
         34 |         15        0.15       99.14
         35 |         14        0.14       99.28
         36 |         16        0.16       99.44
         37 |         14        0.14       99.58
         38 |         10        0.10       99.68
         39 |          8        0.08       99.76
         40 |          4        0.04       99.80
         41 |          7        0.07       99.87
         42 |          4        0.04       99.91
         43 |          1        0.01       99.92
         44 |          3        0.03       99.95
         45 |          1        0.01       99.96
         46 |          2        0.02       99.98
         48 |          1        0.01       99.99
         49 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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