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

         p7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,334       73.34       73.34
          1 |         44        0.44       73.78
          2 |         61        0.61       74.39
          3 |         64        0.64       75.03
          4 |         59        0.59       75.62
          5 |         62        0.62       76.24
          6 |         60        0.60       76.84
          7 |         78        0.78       77.62
          8 |         80        0.80       78.42
          9 |         77        0.77       79.19
         10 |         82        0.82       80.01
         11 |        117        1.17       81.18
         12 |        106        1.06       82.24
         13 |        117        1.17       83.41
         14 |        110        1.10       84.51
         15 |        114        1.14       85.65
         16 |        126        1.26       86.91
         17 |        108        1.08       87.99
         18 |        115        1.15       89.14
         19 |        122        1.22       90.36
         20 |         96        0.96       91.32
         21 |        103        1.03       92.35
         22 |        134        1.34       93.69
         23 |        101        1.01       94.70
         24 |         83        0.83       95.53
         25 |         66        0.66       96.19
         26 |         64        0.64       96.83
         27 |         53        0.53       97.36
         28 |         58        0.58       97.94
         29 |         29        0.29       98.23
         30 |         28        0.28       98.51
         31 |         34        0.34       98.85
         32 |         18        0.18       99.03
         33 |         11        0.11       99.14
         34 |         10        0.10       99.24
         35 |         10        0.10       99.34
         36 |         12        0.12       99.46
         37 |          8        0.08       99.54
         38 |         13        0.13       99.67
         39 |          5        0.05       99.72
         40 |          4        0.04       99.76
         41 |          3        0.03       99.79
         42 |          3        0.03       99.82
         43 |          3        0.03       99.85
         44 |          3        0.03       99.88
         45 |          4        0.04       99.92
         46 |          1        0.01       99.93
         47 |          1        0.01       99.94
         48 |          1        0.01       99.95
         50 |          1        0.01       99.96
         51 |          1        0.01       99.97
         52 |          1        0.01       99.98
         55 |          1        0.01       99.99
         78 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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