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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,941       69.41       69.41
          1 |         41        0.41       69.82
          2 |         70        0.70       70.52
          3 |         75        0.75       71.27
          4 |         65        0.65       71.92
          5 |         56        0.56       72.48
          6 |         80        0.80       73.28
          7 |         90        0.90       74.18
          8 |         79        0.79       74.97
          9 |        102        1.02       75.99
         10 |        121        1.21       77.20
         11 |        114        1.14       78.34
         12 |        136        1.36       79.70
         13 |        132        1.32       81.02
         14 |        150        1.50       82.52
         15 |        167        1.67       84.19
         16 |        156        1.56       85.75
         17 |        125        1.25       87.00
         18 |        137        1.37       88.37
         19 |        127        1.27       89.64
         20 |        119        1.19       90.83
         21 |        135        1.35       92.18
         22 |        113        1.13       93.31
         23 |        101        1.01       94.32
         24 |         81        0.81       95.13
         25 |         83        0.83       95.96
         26 |         56        0.56       96.52
         27 |         69        0.69       97.21
         28 |         51        0.51       97.72
         29 |         46        0.46       98.18
         30 |         23        0.23       98.41
         31 |         25        0.25       98.66
         32 |         24        0.24       98.90
         33 |         17        0.17       99.07
         34 |         21        0.21       99.28
         35 |         16        0.16       99.44
         36 |         17        0.17       99.61
         37 |          8        0.08       99.69
         38 |          6        0.06       99.75
         39 |          5        0.05       99.80
         40 |          4        0.04       99.84
         41 |          2        0.02       99.86
         42 |          3        0.03       99.89
         43 |          1        0.01       99.90
         44 |          2        0.02       99.92
         45 |          2        0.02       99.94
         47 |          1        0.01       99.95
         48 |          2        0.02       99.97
         51 |          2        0.02       99.99
         62 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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