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

         p2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,336       73.36       73.36
          1 |         46        0.46       73.82
          2 |         50        0.50       74.32
          3 |         68        0.68       75.00
          4 |         61        0.61       75.61
          5 |         64        0.64       76.25
          6 |         69        0.69       76.94
          7 |         77        0.77       77.71
          8 |         67        0.67       78.38
          9 |         78        0.78       79.16
         10 |         89        0.89       80.05
         11 |        119        1.19       81.24
         12 |        104        1.04       82.28
         13 |        118        1.18       83.46
         14 |         98        0.98       84.44
         15 |        126        1.26       85.70
         16 |        122        1.22       86.92
         17 |        112        1.12       88.04
         18 |        112        1.12       89.16
         19 |        124        1.24       90.40
         20 |        100        1.00       91.40
         21 |        103        1.03       92.43
         22 |        120        1.20       93.63
         23 |        100        1.00       94.63
         24 |         83        0.83       95.46
         25 |         66        0.66       96.12
         26 |         61        0.61       96.73
         27 |         53        0.53       97.26
         28 |         62        0.62       97.88
         29 |         30        0.30       98.18
         30 |         28        0.28       98.46
         31 |         31        0.31       98.77
         32 |         18        0.18       98.95
         33 |         14        0.14       99.09
         34 |         11        0.11       99.20
         35 |         10        0.10       99.30
         36 |         12        0.12       99.42
         37 |          8        0.08       99.50
         38 |         11        0.11       99.61
         39 |          7        0.07       99.68
         40 |          3        0.03       99.71
         41 |          4        0.04       99.75
         42 |          5        0.05       99.80
         43 |          3        0.03       99.83
         44 |          3        0.03       99.86
         45 |          4        0.04       99.90
         46 |          1        0.01       99.91
         47 |          1        0.01       99.92
         48 |          2        0.02       99.94
         49 |          1        0.01       99.95
         50 |          1        0.01       99.96
         51 |          1        0.01       99.97
         52 |          1        0.01       99.98
         55 |          1        0.01       99.99
         78 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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