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

         p6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,444       74.44       74.44
          1 |         40        0.40       74.84
          2 |         68        0.68       75.52
          3 |         63        0.63       76.15
          4 |         74        0.74       76.89
          5 |         63        0.63       77.52
          6 |         90        0.90       78.42
          7 |         76        0.76       79.18
          8 |         90        0.90       80.08
          9 |         90        0.90       80.98
         10 |         91        0.91       81.89
         11 |        107        1.07       82.96
         12 |         91        0.91       83.87
         13 |         93        0.93       84.80
         14 |        107        1.07       85.87
         15 |         97        0.97       86.84
         16 |        101        1.01       87.85
         17 |        128        1.28       89.13
         18 |        111        1.11       90.24
         19 |         91        0.91       91.15
         20 |        101        1.01       92.16
         21 |        102        1.02       93.18
         22 |         77        0.77       93.95
         23 |         79        0.79       94.74
         24 |         67        0.67       95.41
         25 |         78        0.78       96.19
         26 |         69        0.69       96.88
         27 |         57        0.57       97.45
         28 |         41        0.41       97.86
         29 |         37        0.37       98.23
         30 |         39        0.39       98.62
         31 |         26        0.26       98.88
         32 |         23        0.23       99.11
         33 |          7        0.07       99.18
         34 |          7        0.07       99.25
         35 |         18        0.18       99.43
         36 |         12        0.12       99.55
         37 |          5        0.05       99.60
         38 |          2        0.02       99.62
         39 |          6        0.06       99.68
         40 |          8        0.08       99.76
         41 |          2        0.02       99.78
         42 |          3        0.03       99.81
         43 |          7        0.07       99.88
         44 |          2        0.02       99.90
         45 |          1        0.01       99.91
         48 |          2        0.02       99.93
         49 |          1        0.01       99.94
         50 |          2        0.02       99.96
         53 |          1        0.01       99.97
         54 |          1        0.01       99.98
         60 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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