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

         p1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,366       73.66       73.66
          1 |         42        0.42       74.08
          2 |         65        0.65       74.73
          3 |         65        0.65       75.38
          4 |         60        0.60       75.98
          5 |         62        0.62       76.60
          6 |         68        0.68       77.28
          7 |         74        0.74       78.02
          8 |         83        0.83       78.85
          9 |         91        0.91       79.76
         10 |         99        0.99       80.75
         11 |         93        0.93       81.68
         12 |        116        1.16       82.84
         13 |        131        1.31       84.15
         14 |        108        1.08       85.23
         15 |        108        1.08       86.31
         16 |        105        1.05       87.36
         17 |        106        1.06       88.42
         18 |        118        1.18       89.60
         19 |        115        1.15       90.75
         20 |        117        1.17       91.92
         21 |        110        1.10       93.02
         22 |         97        0.97       93.99
         23 |         85        0.85       94.84
         24 |         67        0.67       95.51
         25 |         57        0.57       96.08
         26 |         49        0.49       96.57
         27 |         64        0.64       97.21
         28 |         42        0.42       97.63
         29 |         37        0.37       98.00
         30 |         31        0.31       98.31
         31 |         28        0.28       98.59
         32 |         24        0.24       98.83
         33 |         24        0.24       99.07
         34 |         17        0.17       99.24
         35 |         17        0.17       99.41
         36 |         10        0.10       99.51
         37 |          7        0.07       99.58
         38 |          4        0.04       99.62
         39 |          4        0.04       99.66
         40 |          7        0.07       99.73
         41 |          3        0.03       99.76
         42 |          5        0.05       99.81
         43 |          6        0.06       99.87
         44 |          1        0.01       99.88
         45 |          5        0.05       99.93
         46 |          2        0.02       99.95
         47 |          1        0.01       99.96
         48 |          1        0.01       99.97
         51 |          1        0.01       99.98
         52 |          1        0.01       99.99
         53 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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