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

         p8 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,419       74.19       74.19
          1 |         31        0.31       74.50
          2 |         68        0.68       75.18
          3 |         58        0.58       75.76
          4 |         64        0.64       76.40
          5 |         68        0.68       77.08
          6 |         78        0.78       77.86
          7 |         79        0.79       78.65
          8 |         90        0.90       79.55
          9 |         87        0.87       80.42
         10 |         88        0.88       81.30
         11 |        109        1.09       82.39
         12 |        109        1.09       83.48
         13 |        105        1.05       84.53
         14 |        123        1.23       85.76
         15 |        104        1.04       86.80
         16 |        116        1.16       87.96
         17 |         92        0.92       88.88
         18 |        122        1.22       90.10
         19 |        113        1.13       91.23
         20 |        105        1.05       92.28
         21 |        104        1.04       93.32
         22 |         86        0.86       94.18
         23 |         82        0.82       95.00
         24 |         70        0.70       95.70
         25 |         55        0.55       96.25
         26 |         58        0.58       96.83
         27 |         52        0.52       97.35
         28 |         37        0.37       97.72
         29 |         35        0.35       98.07
         30 |         40        0.40       98.47
         31 |         25        0.25       98.72
         32 |         28        0.28       99.00
         33 |         24        0.24       99.24
         34 |         16        0.16       99.40
         35 |         10        0.10       99.50
         36 |          6        0.06       99.56
         37 |          7        0.07       99.63
         38 |          9        0.09       99.72
         39 |         11        0.11       99.83
         40 |          4        0.04       99.87
         41 |          3        0.03       99.90
         42 |          3        0.03       99.93
         43 |          1        0.01       99.94
         44 |          2        0.02       99.96
         46 |          2        0.02       99.98
         48 |          1        0.01       99.99
         92 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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