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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,135       61.35       61.35
          1 |         38        0.38       61.73
          2 |         79        0.79       62.52
          3 |         75        0.75       63.27
          4 |         86        0.86       64.13
          5 |        104        1.04       65.17
          6 |         97        0.97       66.14
          7 |        130        1.30       67.44
          8 |        139        1.39       68.83
          9 |        131        1.31       70.14
         10 |        138        1.38       71.52
         11 |        182        1.82       73.34
         12 |        193        1.93       75.27
         13 |        190        1.90       77.17
         14 |        166        1.66       78.83
         15 |        198        1.98       80.81
         16 |        177        1.77       82.58
         17 |        193        1.93       84.51
         18 |        177        1.77       86.28
         19 |        187        1.87       88.15
         20 |        145        1.45       89.60
         21 |        133        1.33       90.93
         22 |        132        1.32       92.25
         23 |        133        1.33       93.58
         24 |         93        0.93       94.51
         25 |         90        0.90       95.41
         26 |         79        0.79       96.20
         27 |         74        0.74       96.94
         28 |         58        0.58       97.52
         29 |         42        0.42       97.94
         30 |         45        0.45       98.39
         31 |         35        0.35       98.74
         32 |         16        0.16       98.90
         33 |         17        0.17       99.07
         34 |         13        0.13       99.20
         35 |         17        0.17       99.37
         36 |         11        0.11       99.48
         37 |          9        0.09       99.57
         38 |         12        0.12       99.69
         39 |          7        0.07       99.76
         40 |          5        0.05       99.81
         41 |          6        0.06       99.87
         42 |          2        0.02       99.89
         43 |          1        0.01       99.90
         44 |          1        0.01       99.91
         45 |          2        0.02       99.93
         46 |          1        0.01       99.94
         47 |          1        0.01       99.95
         48 |          2        0.02       99.97
         50 |          1        0.01       99.98
         52 |          1        0.01       99.99
         56 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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