Frequencies for first 10,000 rows of p3 variable in miper dataset :

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,511       75.11       75.11
          1 |         37        0.37       75.48
          2 |         61        0.61       76.09
          3 |         45        0.45       76.54
          4 |         64        0.64       77.18
          5 |         58        0.58       77.76
          6 |         55        0.55       78.31
          7 |         54        0.54       78.85
          8 |         66        0.66       79.51
          9 |         80        0.80       80.31
         10 |         74        0.74       81.05
         11 |         93        0.93       81.98
         12 |         85        0.85       82.83
         13 |         88        0.88       83.71
         14 |        118        1.18       84.89
         15 |         96        0.96       85.85
         16 |        125        1.25       87.10
         17 |        118        1.18       88.28
         18 |        120        1.20       89.48
         19 |        111        1.11       90.59
         20 |         91        0.91       91.50
         21 |        110        1.10       92.60
         22 |         90        0.90       93.50
         23 |         93        0.93       94.43
         24 |         77        0.77       95.20
         25 |         75        0.75       95.95
         26 |         56        0.56       96.51
         27 |         56        0.56       97.07
         28 |         52        0.52       97.59
         29 |         40        0.40       97.99
         30 |         34        0.34       98.33
         31 |         32        0.32       98.65
         32 |         28        0.28       98.93
         33 |         16        0.16       99.09
         34 |         20        0.20       99.29
         35 |         14        0.14       99.43
         36 |         12        0.12       99.55
         37 |          8        0.08       99.63
         38 |          8        0.08       99.71
         39 |          8        0.08       99.79
         40 |          4        0.04       99.83
         41 |          2        0.02       99.85
         42 |          2        0.02       99.87
         45 |          4        0.04       99.91
         46 |          1        0.01       99.92
         47 |          2        0.02       99.94
         51 |          1        0.01       99.95
         54 |          1        0.01       99.96
         58 |          1        0.01       99.97
         60 |          1        0.01       99.98
         62 |          1        0.01       99.99
         66 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016