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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,297       72.97       72.97
          1 |         32        0.32       73.29
          2 |         71        0.71       74.00
          3 |         59        0.59       74.59
          4 |         62        0.62       75.21
          5 |         56        0.56       75.77
          6 |         72        0.72       76.49
          7 |         78        0.78       77.27
          8 |         93        0.93       78.20
          9 |         94        0.94       79.14
         10 |        110        1.10       80.24
         11 |        110        1.10       81.34
         12 |        125        1.25       82.59
         13 |        107        1.07       83.66
         14 |        120        1.20       84.86
         15 |        131        1.31       86.17
         16 |        131        1.31       87.48
         17 |        127        1.27       88.75
         18 |        125        1.25       90.00
         19 |        110        1.10       91.10
         20 |         97        0.97       92.07
         21 |        106        1.06       93.13
         22 |         77        0.77       93.90
         23 |         81        0.81       94.71
         24 |         66        0.66       95.37
         25 |         61        0.61       95.98
         26 |         53        0.53       96.51
         27 |         55        0.55       97.06
         28 |         37        0.37       97.43
         29 |         46        0.46       97.89
         30 |         40        0.40       98.29
         31 |         29        0.29       98.58
         32 |         13        0.13       98.71
         33 |         21        0.21       98.92
         34 |         21        0.21       99.13
         35 |         18        0.18       99.31
         36 |         10        0.10       99.41
         37 |          6        0.06       99.47
         38 |         12        0.12       99.59
         39 |          9        0.09       99.68
         40 |          4        0.04       99.72
         41 |          5        0.05       99.77
         42 |          5        0.05       99.82
         43 |          5        0.05       99.87
         44 |          1        0.01       99.88
         45 |          3        0.03       99.91
         46 |          2        0.02       99.93
         47 |          1        0.01       99.94
         48 |          2        0.02       99.96
         49 |          1        0.01       99.97
         51 |          2        0.02       99.99
         55 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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