Frequencies for first 10,000 rows of p7 variable in miper dataset :

         p7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,319       73.19       73.19
          1 |         43        0.43       73.62
          2 |         65        0.65       74.27
          3 |         67        0.67       74.94
          4 |         61        0.61       75.55
          5 |         61        0.61       76.16
          6 |         71        0.71       76.87
          7 |         79        0.79       77.66
          8 |         93        0.93       78.59
          9 |         94        0.94       79.53
         10 |         99        0.99       80.52
         11 |        105        1.05       81.57
         12 |        121        1.21       82.78
         13 |        133        1.33       84.11
         14 |        104        1.04       85.15
         15 |        126        1.26       86.41
         16 |        103        1.03       87.44
         17 |        126        1.26       88.70
         18 |        121        1.21       89.91
         19 |        122        1.22       91.13
         20 |        101        1.01       92.14
         21 |        104        1.04       93.18
         22 |        103        1.03       94.21
         23 |         79        0.79       95.00
         24 |         69        0.69       95.69
         25 |         60        0.60       96.29
         26 |         52        0.52       96.81
         27 |         52        0.52       97.33
         28 |         40        0.40       97.73
         29 |         33        0.33       98.06
         30 |         33        0.33       98.39
         31 |         23        0.23       98.62
         32 |         26        0.26       98.88
         33 |         25        0.25       99.13
         34 |         13        0.13       99.26
         35 |         14        0.14       99.40
         36 |         12        0.12       99.52
         37 |          7        0.07       99.59
         38 |          4        0.04       99.63
         39 |          5        0.05       99.68
         40 |          7        0.07       99.75
         41 |          3        0.03       99.78
         42 |          5        0.05       99.83
         43 |          5        0.05       99.88
         44 |          1        0.01       99.89
         45 |          3        0.03       99.92
         46 |          1        0.01       99.93
         47 |          1        0.01       99.94
         48 |          1        0.01       99.95
         51 |          1        0.01       99.96
         52 |          2        0.02       99.98
         54 |          1        0.01       99.99
         58 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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