Frequencies for first 10,000 rows of p1 variable in miper dataset :

         p1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,279       72.79       72.79
          1 |         44        0.44       73.23
          2 |         72        0.72       73.95
          3 |         56        0.56       74.51
          4 |         71        0.71       75.22
          5 |         70        0.70       75.92
          6 |         72        0.72       76.64
          7 |         93        0.93       77.57
          8 |         89        0.89       78.46
          9 |         91        0.91       79.37
         10 |        102        1.02       80.39
         11 |        108        1.08       81.47
         12 |        119        1.19       82.66
         13 |        147        1.47       84.13
         14 |        118        1.18       85.31
         15 |         89        0.89       86.20
         16 |        131        1.31       87.51
         17 |        110        1.10       88.61
         18 |        113        1.13       89.74
         19 |        119        1.19       90.93
         20 |         96        0.96       91.89
         21 |        101        1.01       92.90
         22 |        104        1.04       93.94
         23 |         76        0.76       94.70
         24 |         91        0.91       95.61
         25 |         60        0.60       96.21
         26 |         56        0.56       96.77
         27 |         58        0.58       97.35
         28 |         41        0.41       97.76
         29 |         36        0.36       98.12
         30 |         37        0.37       98.49
         31 |         27        0.27       98.76
         32 |         14        0.14       98.90
         33 |         22        0.22       99.12
         34 |         11        0.11       99.23
         35 |         15        0.15       99.38
         36 |         16        0.16       99.54
         37 |         10        0.10       99.64
         38 |          4        0.04       99.68
         39 |          5        0.05       99.73
         40 |          7        0.07       99.80
         41 |          3        0.03       99.83
         42 |          4        0.04       99.87
         43 |          2        0.02       99.89
         45 |          1        0.01       99.90
         46 |          2        0.02       99.92
         48 |          2        0.02       99.94
         50 |          1        0.01       99.95
         51 |          2        0.02       99.97
         52 |          1        0.01       99.98
         57 |          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