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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,442       74.42       74.42
          1 |         34        0.34       74.76
          2 |         46        0.46       75.22
          3 |         58        0.58       75.80
          4 |         73        0.73       76.53
          5 |         55        0.55       77.08
          6 |         65        0.65       77.73
          7 |         66        0.66       78.39
          8 |         68        0.68       79.07
          9 |         81        0.81       79.88
         10 |         75        0.75       80.63
         11 |         97        0.97       81.60
         12 |        106        1.06       82.66
         13 |         90        0.90       83.56
         14 |        112        1.12       84.68
         15 |        126        1.26       85.94
         16 |        113        1.13       87.07
         17 |        114        1.14       88.21
         18 |        114        1.14       89.35
         19 |        100        1.00       90.35
         20 |         91        0.91       91.26
         21 |        109        1.09       92.35
         22 |         86        0.86       93.21
         23 |         95        0.95       94.16
         24 |         84        0.84       95.00
         25 |         66        0.66       95.66
         26 |         53        0.53       96.19
         27 |         63        0.63       96.82
         28 |         40        0.40       97.22
         29 |         45        0.45       97.67
         30 |         26        0.26       97.93
         31 |         27        0.27       98.20
         32 |         37        0.37       98.57
         33 |         23        0.23       98.80
         34 |         17        0.17       98.97
         35 |         23        0.23       99.20
         36 |         14        0.14       99.34
         37 |         15        0.15       99.49
         38 |         10        0.10       99.59
         39 |          7        0.07       99.66
         40 |          9        0.09       99.75
         41 |          3        0.03       99.78
         42 |          2        0.02       99.80
         43 |          5        0.05       99.85
         44 |          2        0.02       99.87
         45 |          1        0.01       99.88
         46 |          2        0.02       99.90
         47 |          1        0.01       99.91
         48 |          1        0.01       99.92
         49 |          1        0.01       99.93
         50 |          1        0.01       99.94
         61 |          1        0.01       99.95
         63 |          1        0.01       99.96
         64 |          2        0.02       99.98
         73 |          1        0.01       99.99
         76 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016