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

         p7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,491       74.91       74.91
          1 |         37        0.37       75.28
          2 |         62        0.62       75.90
          3 |         60        0.60       76.50
          4 |         56        0.56       77.06
          5 |         64        0.64       77.70
          6 |         75        0.75       78.45
          7 |         73        0.73       79.18
          8 |         92        0.92       80.10
          9 |         82        0.82       80.92
         10 |         98        0.98       81.90
         11 |        103        1.03       82.93
         12 |        101        1.01       83.94
         13 |        102        1.02       84.96
         14 |        113        1.13       86.09
         15 |         98        0.98       87.07
         16 |        102        1.02       88.09
         17 |        104        1.04       89.13
         18 |        111        1.11       90.24
         19 |         89        0.89       91.13
         20 |        104        1.04       92.17
         21 |         98        0.98       93.15
         22 |         92        0.92       94.07
         23 |         81        0.81       94.88
         24 |         68        0.68       95.56
         25 |         80        0.80       96.36
         26 |         61        0.61       96.97
         27 |         48        0.48       97.45
         28 |         48        0.48       97.93
         29 |         38        0.38       98.31
         30 |         43        0.43       98.74
         31 |         18        0.18       98.92
         32 |         25        0.25       99.17
         33 |         11        0.11       99.28
         34 |          8        0.08       99.36
         35 |         13        0.13       99.49
         36 |          5        0.05       99.54
         37 |          5        0.05       99.59
         38 |          4        0.04       99.63
         39 |          6        0.06       99.69
         40 |          4        0.04       99.73
         41 |          1        0.01       99.74
         42 |          4        0.04       99.78
         43 |          7        0.07       99.85
         44 |          3        0.03       99.88
         47 |          1        0.01       99.89
         48 |          2        0.02       99.91
         49 |          1        0.01       99.92
         50 |          2        0.02       99.94
         51 |          1        0.01       99.95
         53 |          1        0.01       99.96
         54 |          1        0.01       99.97
         60 |          2        0.02       99.99
         67 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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