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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,100       61.00       61.00
          1 |         32        0.32       61.32
          2 |         70        0.70       62.02
          3 |         75        0.75       62.77
          4 |         80        0.80       63.57
          5 |         82        0.82       64.39
          6 |         93        0.93       65.32
          7 |        127        1.27       66.59
          8 |        134        1.34       67.93
          9 |        133        1.33       69.26
         10 |        164        1.64       70.90
         11 |        155        1.55       72.45
         12 |        155        1.55       74.00
         13 |        161        1.61       75.61
         14 |        189        1.89       77.50
         15 |        157        1.57       79.07
         16 |        214        2.14       81.21
         17 |        198        1.98       83.19
         18 |        183        1.83       85.02
         19 |        190        1.90       86.92
         20 |        163        1.63       88.55
         21 |        139        1.39       89.94
         22 |        142        1.42       91.36
         23 |        134        1.34       92.70
         24 |        116        1.16       93.86
         25 |        107        1.07       94.93
         26 |         81        0.81       95.74
         27 |         73        0.73       96.47
         28 |         70        0.70       97.17
         29 |         46        0.46       97.63
         30 |         39        0.39       98.02
         31 |         30        0.30       98.32
         32 |         30        0.30       98.62
         33 |         29        0.29       98.91
         34 |         22        0.22       99.13
         35 |         15        0.15       99.28
         36 |         13        0.13       99.41
         37 |         12        0.12       99.53
         38 |         10        0.10       99.63
         39 |          7        0.07       99.70
         40 |          3        0.03       99.73
         41 |          6        0.06       99.79
         42 |          5        0.05       99.84
         43 |          2        0.02       99.86
         44 |          3        0.03       99.89
         45 |          2        0.02       99.91
         46 |          2        0.02       99.93
         47 |          2        0.02       99.95
         48 |          1        0.01       99.96
         49 |          2        0.02       99.98
         51 |          1        0.01       99.99
         52 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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