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

         p2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,912       59.12       59.12
          1 |         27        0.27       59.39
          2 |         77        0.77       60.16
          3 |         66        0.66       60.82
          4 |         81        0.81       61.63
          5 |         71        0.71       62.34
          6 |        101        1.01       63.35
          7 |        108        1.08       64.43
          8 |        129        1.29       65.72
          9 |        135        1.35       67.07
         10 |        172        1.72       68.79
         11 |        162        1.62       70.41
         12 |        182        1.82       72.23
         13 |        177        1.77       74.00
         14 |        167        1.67       75.67
         15 |        180        1.80       77.47
         16 |        203        2.03       79.50
         17 |        233        2.33       81.83
         18 |        184        1.84       83.67
         19 |        176        1.76       85.43
         20 |        175        1.75       87.18
         21 |        168        1.68       88.86
         22 |        164        1.64       90.50
         23 |        155        1.55       92.05
         24 |        134        1.34       93.39
         25 |        101        1.01       94.40
         26 |         97        0.97       95.37
         27 |         82        0.82       96.19
         28 |         71        0.71       96.90
         29 |         51        0.51       97.41
         30 |         49        0.49       97.90
         31 |         37        0.37       98.27
         32 |         30        0.30       98.57
         33 |         31        0.31       98.88
         34 |         18        0.18       99.06
         35 |         16        0.16       99.22
         36 |         18        0.18       99.40
         37 |         12        0.12       99.52
         38 |         10        0.10       99.62
         39 |          8        0.08       99.70
         40 |          4        0.04       99.74
         41 |          7        0.07       99.81
         42 |          3        0.03       99.84
         43 |          2        0.02       99.86
         44 |          3        0.03       99.89
         45 |          1        0.01       99.90
         46 |          2        0.02       99.92
         47 |          3        0.03       99.95
         48 |          2        0.02       99.97
         49 |          1        0.01       99.98
         50 |          1        0.01       99.99
         69 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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