Frequencies for first 10,000 rows of p6 variable in miper dataset :

         p6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,576       65.76       65.76
          1 |         29        0.29       66.05
          2 |         66        0.66       66.71
          3 |         51        0.51       67.22
          4 |         71        0.71       67.93
          5 |         77        0.77       68.70
          6 |         91        0.91       69.61
          7 |        102        1.02       70.63
          8 |        106        1.06       71.69
          9 |        129        1.29       72.98
         10 |        110        1.10       74.08
         11 |        135        1.35       75.43
         12 |        145        1.45       76.88
         13 |        152        1.52       78.40
         14 |        177        1.77       80.17
         15 |        158        1.58       81.75
         16 |        174        1.74       83.49
         17 |        151        1.51       85.00
         18 |        176        1.76       86.76
         19 |        157        1.57       88.33
         20 |        142        1.42       89.75
         21 |        118        1.18       90.93
         22 |        142        1.42       92.35
         23 |        106        1.06       93.41
         24 |        120        1.20       94.61
         25 |         79        0.79       95.40
         26 |         90        0.90       96.30
         27 |         56        0.56       96.86
         28 |         48        0.48       97.34
         29 |         42        0.42       97.76
         30 |         32        0.32       98.08
         31 |         47        0.47       98.55
         32 |         28        0.28       98.83
         33 |         27        0.27       99.10
         34 |         15        0.15       99.25
         35 |         14        0.14       99.39
         36 |          8        0.08       99.47
         37 |          9        0.09       99.56
         38 |          9        0.09       99.65
         39 |          8        0.08       99.73
         40 |          4        0.04       99.77
         41 |          6        0.06       99.83
         42 |          3        0.03       99.86
         43 |          4        0.04       99.90
         45 |          2        0.02       99.92
         46 |          1        0.01       99.93
         48 |          1        0.01       99.94
         50 |          1        0.01       99.95
         53 |          3        0.03       99.98
         70 |          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