Frequencies for first 10,000 rows of p1 variable in miper dataset :

         p1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,450       74.50       74.50
          1 |         29        0.29       74.79
          2 |         67        0.67       75.46
          3 |         46        0.46       75.92
          4 |         65        0.65       76.57
          5 |         46        0.46       77.03
          6 |         65        0.65       77.68
          7 |         84        0.84       78.52
          8 |         78        0.78       79.30
          9 |         88        0.88       80.18
         10 |         77        0.77       80.95
         11 |         89        0.89       81.84
         12 |        105        1.05       82.89
         13 |         87        0.87       83.76
         14 |        110        1.10       84.86
         15 |        111        1.11       85.97
         16 |        113        1.13       87.10
         17 |        125        1.25       88.35
         18 |        108        1.08       89.43
         19 |        100        1.00       90.43
         20 |        124        1.24       91.67
         21 |        100        1.00       92.67
         22 |        104        1.04       93.71
         23 |         89        0.89       94.60
         24 |         72        0.72       95.32
         25 |         70        0.70       96.02
         26 |         59        0.59       96.61
         27 |         48        0.48       97.09
         28 |         48        0.48       97.57
         29 |         46        0.46       98.03
         30 |         25        0.25       98.28
         31 |         17        0.17       98.45
         32 |         28        0.28       98.73
         33 |         28        0.28       99.01
         34 |         24        0.24       99.25
         35 |         21        0.21       99.46
         36 |          6        0.06       99.52
         37 |         13        0.13       99.65
         38 |          5        0.05       99.70
         39 |          3        0.03       99.73
         40 |          5        0.05       99.78
         41 |          7        0.07       99.85
         42 |          3        0.03       99.88
         43 |          5        0.05       99.93
         44 |          1        0.01       99.94
         45 |          3        0.03       99.97
         46 |          1        0.01       99.98
         49 |          1        0.01       99.99
         52 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016