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

         p1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,359       63.59       63.59
          1 |         46        0.46       64.05
          2 |         74        0.74       64.79
          3 |         86        0.86       65.65
          4 |         71        0.71       66.36
          5 |         92        0.92       67.28
          6 |         94        0.94       68.22
          7 |        121        1.21       69.43
          8 |        111        1.11       70.54
          9 |        136        1.36       71.90
         10 |        113        1.13       73.03
         11 |        141        1.41       74.44
         12 |        147        1.47       75.91
         13 |        160        1.60       77.51
         14 |        168        1.68       79.19
         15 |        177        1.77       80.96
         16 |        196        1.96       82.92
         17 |        180        1.80       84.72
         18 |        152        1.52       86.24
         19 |        167        1.67       87.91
         20 |        143        1.43       89.34
         21 |        144        1.44       90.78
         22 |        145        1.45       92.23
         23 |        107        1.07       93.30
         24 |         98        0.98       94.28
         25 |         88        0.88       95.16
         26 |         86        0.86       96.02
         27 |         71        0.71       96.73
         28 |         63        0.63       97.36
         29 |         44        0.44       97.80
         30 |         34        0.34       98.14
         31 |         30        0.30       98.44
         32 |         30        0.30       98.74
         33 |         24        0.24       98.98
         34 |         25        0.25       99.23
         35 |         12        0.12       99.35
         36 |         10        0.10       99.45
         37 |         11        0.11       99.56
         38 |          5        0.05       99.61
         39 |          8        0.08       99.69
         40 |          7        0.07       99.76
         41 |          3        0.03       99.79
         42 |          3        0.03       99.82
         43 |          6        0.06       99.88
         44 |          3        0.03       99.91
         46 |          1        0.01       99.92
         47 |          1        0.01       99.93
         48 |          1        0.01       99.94
         49 |          2        0.02       99.96
         50 |          1        0.01       99.97
         51 |          1        0.01       99.98
         58 |          1        0.01       99.99
         59 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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