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

         p7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,218       62.18       62.18
          1 |         39        0.39       62.57
          2 |         73        0.73       63.30
          3 |         75        0.75       64.05
          4 |         75        0.75       64.80
          5 |         91        0.91       65.71
          6 |        102        1.02       66.73
          7 |        118        1.18       67.91
          8 |        121        1.21       69.12
          9 |        145        1.45       70.57
         10 |        144        1.44       72.01
         11 |        176        1.76       73.77
         12 |        172        1.72       75.49
         13 |        192        1.92       77.41
         14 |        160        1.60       79.01
         15 |        195        1.95       80.96
         16 |        180        1.80       82.76
         17 |        182        1.82       84.58
         18 |        176        1.76       86.34
         19 |        162        1.62       87.96
         20 |        146        1.46       89.42
         21 |        139        1.39       90.81
         22 |        134        1.34       92.15
         23 |        128        1.28       93.43
         24 |         96        0.96       94.39
         25 |         88        0.88       95.27
         26 |         79        0.79       96.06
         27 |         67        0.67       96.73
         28 |         59        0.59       97.32
         29 |         37        0.37       97.69
         30 |         43        0.43       98.12
         31 |         37        0.37       98.49
         32 |         24        0.24       98.73
         33 |         22        0.22       98.95
         34 |         17        0.17       99.12
         35 |         22        0.22       99.34
         36 |          8        0.08       99.42
         37 |          6        0.06       99.48
         38 |         12        0.12       99.60
         39 |          9        0.09       99.69
         40 |          8        0.08       99.77
         41 |          5        0.05       99.82
         42 |          4        0.04       99.86
         43 |          1        0.01       99.87
         44 |          3        0.03       99.90
         45 |          2        0.02       99.92
         46 |          1        0.01       99.93
         47 |          1        0.01       99.94
         48 |          2        0.02       99.96
         50 |          1        0.01       99.97
         52 |          2        0.02       99.99
         56 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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