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

         p1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,117       61.17       61.17
          1 |         38        0.38       61.55
          2 |         79        0.79       62.34
          3 |         70        0.70       63.04
          4 |         81        0.81       63.85
          5 |         90        0.90       64.75
          6 |         99        0.99       65.74
          7 |        119        1.19       66.93
          8 |        140        1.40       68.33
          9 |        139        1.39       69.72
         10 |        140        1.40       71.12
         11 |        191        1.91       73.03
         12 |        176        1.76       74.79
         13 |        191        1.91       76.70
         14 |        162        1.62       78.32
         15 |        197        1.97       80.29
         16 |        179        1.79       82.08
         17 |        192        1.92       84.00
         18 |        190        1.90       85.90
         19 |        182        1.82       87.72
         20 |        151        1.51       89.23
         21 |        141        1.41       90.64
         22 |        147        1.47       92.11
         23 |        130        1.30       93.41
         24 |         92        0.92       94.33
         25 |         93        0.93       95.26
         26 |         78        0.78       96.04
         27 |         69        0.69       96.73
         28 |         59        0.59       97.32
         29 |         42        0.42       97.74
         30 |         42        0.42       98.16
         31 |         40        0.40       98.56
         32 |         26        0.26       98.82
         33 |         21        0.21       99.03
         34 |         15        0.15       99.18
         35 |         21        0.21       99.39
         36 |          9        0.09       99.48
         37 |          8        0.08       99.56
         38 |         11        0.11       99.67
         39 |          7        0.07       99.74
         40 |          4        0.04       99.78
         41 |          6        0.06       99.84
         42 |          3        0.03       99.87
         43 |          1        0.01       99.88
         44 |          2        0.02       99.90
         45 |          3        0.03       99.93
         47 |          1        0.01       99.94
         48 |          3        0.03       99.97
         50 |          1        0.01       99.98
         52 |          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