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

         p1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,960       69.60       69.60
          1 |         40        0.40       70.00
          2 |         67        0.67       70.67
          3 |         78        0.78       71.45
          4 |         80        0.80       72.25
          5 |         65        0.65       72.90
          6 |         68        0.68       73.58
          7 |         92        0.92       74.50
          8 |         93        0.93       75.43
          9 |         94        0.94       76.37
         10 |        127        1.27       77.64
         11 |         97        0.97       78.61
         12 |        127        1.27       79.88
         13 |        139        1.39       81.27
         14 |        146        1.46       82.73
         15 |        166        1.66       84.39
         16 |        153        1.53       85.92
         17 |        119        1.19       87.11
         18 |        142        1.42       88.53
         19 |        114        1.14       89.67
         20 |        120        1.20       90.87
         21 |        132        1.32       92.19
         22 |        111        1.11       93.30
         23 |         99        0.99       94.29
         24 |         85        0.85       95.14
         25 |         82        0.82       95.96
         26 |         69        0.69       96.65
         27 |         65        0.65       97.30
         28 |         52        0.52       97.82
         29 |         40        0.40       98.22
         30 |         27        0.27       98.49
         31 |         26        0.26       98.75
         32 |         26        0.26       99.01
         33 |         18        0.18       99.19
         34 |         18        0.18       99.37
         35 |         13        0.13       99.50
         36 |         13        0.13       99.63
         37 |         11        0.11       99.74
         38 |         10        0.10       99.84
         39 |          5        0.05       99.89
         40 |          4        0.04       99.93
         41 |          1        0.01       99.94
         43 |          1        0.01       99.95
         44 |          1        0.01       99.96
         46 |          1        0.01       99.97
         48 |          2        0.02       99.99
         62 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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