Frequencies for first 10,000 rows of p8 variable in miper dataset :

         p8 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,356       73.56       73.56
          1 |         45        0.45       74.01
          2 |         53        0.53       74.54
          3 |         60        0.60       75.14
          4 |         59        0.59       75.73
          5 |         65        0.65       76.38
          6 |         66        0.66       77.04
          7 |         72        0.72       77.76
          8 |         71        0.71       78.47
          9 |         88        0.88       79.35
         10 |         85        0.85       80.20
         11 |        116        1.16       81.36
         12 |         94        0.94       82.30
         13 |        113        1.13       83.43
         14 |        101        1.01       84.44
         15 |        126        1.26       85.70
         16 |        130        1.30       87.00
         17 |        114        1.14       88.14
         18 |        111        1.11       89.25
         19 |        122        1.22       90.47
         20 |         97        0.97       91.44
         21 |         96        0.96       92.40
         22 |        128        1.28       93.68
         23 |        103        1.03       94.71
         24 |         82        0.82       95.53
         25 |         70        0.70       96.23
         26 |         58        0.58       96.81
         27 |         52        0.52       97.33
         28 |         61        0.61       97.94
         29 |         32        0.32       98.26
         30 |         30        0.30       98.56
         31 |         31        0.31       98.87
         32 |         20        0.20       99.07
         33 |         13        0.13       99.20
         34 |         10        0.10       99.30
         35 |         10        0.10       99.40
         36 |         11        0.11       99.51
         37 |          9        0.09       99.60
         38 |         10        0.10       99.70
         39 |          3        0.03       99.73
         40 |          3        0.03       99.76
         41 |          3        0.03       99.79
         42 |          3        0.03       99.82
         43 |          3        0.03       99.85
         44 |          3        0.03       99.88
         45 |          4        0.04       99.92
         46 |          1        0.01       99.93
         47 |          1        0.01       99.94
         48 |          1        0.01       99.95
         50 |          1        0.01       99.96
         51 |          1        0.01       99.97
         52 |          1        0.01       99.98
         55 |          1        0.01       99.99
         78 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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