Frequencies for first 10,000 rows of p7 variable in miper dataset :

         p7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,417       74.17       74.17
          1 |         34        0.34       74.51
          2 |         50        0.50       75.01
          3 |         56        0.56       75.57
          4 |         61        0.61       76.18
          5 |         61        0.61       76.79
          6 |         62        0.62       77.41
          7 |         58        0.58       77.99
          8 |         82        0.82       78.81
          9 |         80        0.80       79.61
         10 |         89        0.89       80.50
         11 |        101        1.01       81.51
         12 |        102        1.02       82.53
         13 |         93        0.93       83.46
         14 |        108        1.08       84.54
         15 |        122        1.22       85.76
         16 |        121        1.21       86.97
         17 |        123        1.23       88.20
         18 |        113        1.13       89.33
         19 |         89        0.89       90.22
         20 |         94        0.94       91.16
         21 |        106        1.06       92.22
         22 |         82        0.82       93.04
         23 |         94        0.94       93.98
         24 |         91        0.91       94.89
         25 |         61        0.61       95.50
         26 |         54        0.54       96.04
         27 |         70        0.70       96.74
         28 |         47        0.47       97.21
         29 |         39        0.39       97.60
         30 |         27        0.27       97.87
         31 |         27        0.27       98.14
         32 |         32        0.32       98.46
         33 |         20        0.20       98.66
         34 |         19        0.19       98.85
         35 |         20        0.20       99.05
         36 |         12        0.12       99.17
         37 |         19        0.19       99.36
         38 |         16        0.16       99.52
         39 |          5        0.05       99.57
         40 |         10        0.10       99.67
         41 |          2        0.02       99.69
         42 |          7        0.07       99.76
         43 |          6        0.06       99.82
         44 |          1        0.01       99.83
         45 |          2        0.02       99.85
         46 |          4        0.04       99.89
         47 |          1        0.01       99.90
         48 |          1        0.01       99.91
         49 |          1        0.01       99.92
         52 |          1        0.01       99.93
         54 |          1        0.01       99.94
         61 |          1        0.01       99.95
         63 |          1        0.01       99.96
         64 |          2        0.02       99.98
         73 |          1        0.01       99.99
         76 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016