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

         p8 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,632       66.32       66.32
          1 |         46        0.46       66.78
          2 |         85        0.85       67.63
          3 |         79        0.79       68.42
          4 |         74        0.74       69.16
          5 |         74        0.74       69.90
          6 |         93        0.93       70.83
          7 |         94        0.94       71.77
          8 |         84        0.84       72.61
          9 |        120        1.20       73.81
         10 |        133        1.33       75.14
         11 |        128        1.28       76.42
         12 |        137        1.37       77.79
         13 |        136        1.36       79.15
         14 |        139        1.39       80.54
         15 |        174        1.74       82.28
         16 |        187        1.87       84.15
         17 |        188        1.88       86.03
         18 |        138        1.38       87.41
         19 |        149        1.49       88.90
         20 |        154        1.54       90.44
         21 |        146        1.46       91.90
         22 |        122        1.22       93.12
         23 |        105        1.05       94.17
         24 |         97        0.97       95.14
         25 |         78        0.78       95.92
         26 |         66        0.66       96.58
         27 |         61        0.61       97.19
         28 |         58        0.58       97.77
         29 |         43        0.43       98.20
         30 |         41        0.41       98.61
         31 |         28        0.28       98.89
         32 |         21        0.21       99.10
         33 |         19        0.19       99.29
         34 |          6        0.06       99.35
         35 |         13        0.13       99.48
         36 |         10        0.10       99.58
         37 |          8        0.08       99.66
         38 |          7        0.07       99.73
         39 |          3        0.03       99.76
         40 |          8        0.08       99.84
         41 |          1        0.01       99.85
         42 |          2        0.02       99.87
         43 |          5        0.05       99.92
         44 |          2        0.02       99.94
         46 |          2        0.02       99.96
         48 |          1        0.01       99.97
         52 |          1        0.01       99.98
         56 |          1        0.01       99.99
         66 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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