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

         p7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,313       73.13       73.13
          1 |         46        0.46       73.59
          2 |         77        0.77       74.36
          3 |         48        0.48       74.84
          4 |         77        0.77       75.61
          5 |         63        0.63       76.24
          6 |         71        0.71       76.95
          7 |         92        0.92       77.87
          8 |         81        0.81       78.68
          9 |         92        0.92       79.60
         10 |         85        0.85       80.45
         11 |         93        0.93       81.38
         12 |        126        1.26       82.64
         13 |        147        1.47       84.11
         14 |        108        1.08       85.19
         15 |        108        1.08       86.27
         16 |        118        1.18       87.45
         17 |        111        1.11       88.56
         18 |        101        1.01       89.57
         19 |        116        1.16       90.73
         20 |        104        1.04       91.77
         21 |        100        1.00       92.77
         22 |        103        1.03       93.80
         23 |         88        0.88       94.68
         24 |         91        0.91       95.59
         25 |         60        0.60       96.19
         26 |         61        0.61       96.80
         27 |         55        0.55       97.35
         28 |         56        0.56       97.91
         29 |         37        0.37       98.28
         30 |         30        0.30       98.58
         31 |         22        0.22       98.80
         32 |         14        0.14       98.94
         33 |         24        0.24       99.18
         34 |         15        0.15       99.33
         35 |         13        0.13       99.46
         36 |         11        0.11       99.57
         37 |         10        0.10       99.67
         38 |          6        0.06       99.73
         39 |          6        0.06       99.79
         40 |          5        0.05       99.84
         41 |          2        0.02       99.86
         42 |          4        0.04       99.90
         43 |          1        0.01       99.91
         44 |          1        0.01       99.92
         45 |          1        0.01       99.93
         46 |          3        0.03       99.96
         50 |          1        0.01       99.97
         51 |          1        0.01       99.98
         60 |          1        0.01       99.99
         75 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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