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

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,392       73.92       73.92
          1 |         32        0.32       74.24
          2 |         68        0.68       74.92
          3 |         59        0.59       75.51
          4 |         62        0.62       76.13
          5 |         65        0.65       76.78
          6 |         77        0.77       77.55
          7 |         71        0.71       78.26
          8 |         95        0.95       79.21
          9 |        100        1.00       80.21
         10 |         97        0.97       81.18
         11 |        110        1.10       82.28
         12 |        111        1.11       83.39
         13 |        102        1.02       84.41
         14 |        119        1.19       85.60
         15 |        122        1.22       86.82
         16 |        111        1.11       87.93
         17 |        124        1.24       89.17
         18 |        120        1.20       90.37
         19 |        117        1.17       91.54
         20 |        119        1.19       92.73
         21 |        102        1.02       93.75
         22 |         78        0.78       94.53
         23 |         73        0.73       95.26
         24 |         66        0.66       95.92
         25 |         49        0.49       96.41
         26 |         50        0.50       96.91
         27 |         48        0.48       97.39
         28 |         29        0.29       97.68
         29 |         39        0.39       98.07
         30 |         40        0.40       98.47
         31 |         23        0.23       98.70
         32 |         30        0.30       99.00
         33 |         24        0.24       99.24
         34 |         16        0.16       99.40
         35 |         13        0.13       99.53
         36 |          8        0.08       99.61
         37 |          6        0.06       99.67
         38 |          8        0.08       99.75
         39 |          4        0.04       99.79
         40 |          3        0.03       99.82
         41 |          1        0.01       99.83
         42 |          2        0.02       99.85
         43 |          5        0.05       99.90
         44 |          4        0.04       99.94
         45 |          1        0.01       99.95
         46 |          2        0.02       99.97
         48 |          2        0.02       99.99
         55 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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