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

         p1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,121       71.21       71.21
          1 |         32        0.32       71.53
          2 |         77        0.77       72.30
          3 |         59        0.59       72.89
          4 |         61        0.61       73.50
          5 |         69        0.69       74.19
          6 |         59        0.59       74.78
          7 |         71        0.71       75.49
          8 |        111        1.11       76.60
          9 |        107        1.07       77.67
         10 |        108        1.08       78.75
         11 |        107        1.07       79.82
         12 |        111        1.11       80.93
         13 |        145        1.45       82.38
         14 |        114        1.14       83.52
         15 |        140        1.40       84.92
         16 |        137        1.37       86.29
         17 |        124        1.24       87.53
         18 |        131        1.31       88.84
         19 |        120        1.20       90.04
         20 |        120        1.20       91.24
         21 |         93        0.93       92.17
         22 |        104        1.04       93.21
         23 |         86        0.86       94.07
         24 |         94        0.94       95.01
         25 |         69        0.69       95.70
         26 |         59        0.59       96.29
         27 |         46        0.46       96.75
         28 |         52        0.52       97.27
         29 |         57        0.57       97.84
         30 |         40        0.40       98.24
         31 |         23        0.23       98.47
         32 |         30        0.30       98.77
         33 |         25        0.25       99.02
         34 |         22        0.22       99.24
         35 |         18        0.18       99.42
         36 |         12        0.12       99.54
         37 |          7        0.07       99.61
         38 |         10        0.10       99.71
         39 |          5        0.05       99.76
         40 |          7        0.07       99.83
         41 |          4        0.04       99.87
         42 |          3        0.03       99.90
         43 |          1        0.01       99.91
         44 |          1        0.01       99.92
         45 |          5        0.05       99.97
         46 |          1        0.01       99.98
         54 |          1        0.01       99.99
         56 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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