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

         p1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,517       75.17       75.17
          1 |         34        0.34       75.51
          2 |         69        0.69       76.20
          3 |         62        0.62       76.82
          4 |         53        0.53       77.35
          5 |         63        0.63       77.98
          6 |         68        0.68       78.66
          7 |         75        0.75       79.41
          8 |         82        0.82       80.23
          9 |         76        0.76       80.99
         10 |         98        0.98       81.97
         11 |         94        0.94       82.91
         12 |        121        1.21       84.12
         13 |         89        0.89       85.01
         14 |         95        0.95       85.96
         15 |        106        1.06       87.02
         16 |        127        1.27       88.29
         17 |        110        1.10       89.39
         18 |        130        1.30       90.69
         19 |         91        0.91       91.60
         20 |        100        1.00       92.60
         21 |         90        0.90       93.50
         22 |         90        0.90       94.40
         23 |         69        0.69       95.09
         24 |         73        0.73       95.82
         25 |         61        0.61       96.43
         26 |         45        0.45       96.88
         27 |         54        0.54       97.42
         28 |         40        0.40       97.82
         29 |         29        0.29       98.11
         30 |         30        0.30       98.41
         31 |         20        0.20       98.61
         32 |         28        0.28       98.89
         33 |         12        0.12       99.01
         34 |         19        0.19       99.20
         35 |         13        0.13       99.33
         36 |          5        0.05       99.38
         37 |         11        0.11       99.49
         38 |          7        0.07       99.56
         39 |          6        0.06       99.62
         40 |          9        0.09       99.71
         41 |          4        0.04       99.75
         42 |          3        0.03       99.78
         43 |          1        0.01       99.79
         44 |          1        0.01       99.80
         45 |          3        0.03       99.83
         46 |          3        0.03       99.86
         47 |          3        0.03       99.89
         48 |          3        0.03       99.92
         49 |          1        0.01       99.93
         50 |          1        0.01       99.94
         53 |          2        0.02       99.96
         55 |          1        0.01       99.97
         58 |          1        0.01       99.98
         59 |          1        0.01       99.99
         70 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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