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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,797       67.97       67.97
          1 |         27        0.27       68.24
          2 |         69        0.69       68.93
          3 |         76        0.76       69.69
          4 |         60        0.60       70.29
          5 |         81        0.81       71.10
          6 |         75        0.75       71.85
          7 |         86        0.86       72.71
          8 |         89        0.89       73.60
          9 |        106        1.06       74.66
         10 |        129        1.29       75.95
         11 |        127        1.27       77.22
         12 |        123        1.23       78.45
         13 |        135        1.35       79.80
         14 |        150        1.50       81.30
         15 |        163        1.63       82.93
         16 |        164        1.64       84.57
         17 |        142        1.42       85.99
         18 |        151        1.51       87.50
         19 |        130        1.30       88.80
         20 |        151        1.51       90.31
         21 |        123        1.23       91.54
         22 |        111        1.11       92.65
         23 |         92        0.92       93.57
         24 |         95        0.95       94.52
         25 |         86        0.86       95.38
         26 |         83        0.83       96.21
         27 |         53        0.53       96.74
         28 |         61        0.61       97.35
         29 |         57        0.57       97.92
         30 |         41        0.41       98.33
         31 |         34        0.34       98.67
         32 |         21        0.21       98.88
         33 |         17        0.17       99.05
         34 |         13        0.13       99.18
         35 |          9        0.09       99.27
         36 |         14        0.14       99.41
         37 |         11        0.11       99.52
         38 |         10        0.10       99.62
         39 |          5        0.05       99.67
         40 |          1        0.01       99.68
         41 |          5        0.05       99.73
         42 |          4        0.04       99.77
         43 |          3        0.03       99.80
         44 |          3        0.03       99.83
         45 |          5        0.05       99.88
         46 |          4        0.04       99.92
         47 |          4        0.04       99.96
         48 |          1        0.01       99.97
         54 |          1        0.01       99.98
         56 |          1        0.01       99.99
         88 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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