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

         p1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,773       67.73       67.73
          1 |         26        0.26       67.99
          2 |         71        0.71       68.70
          3 |         73        0.73       69.43
          4 |         56        0.56       69.99
          5 |         75        0.75       70.74
          6 |         81        0.81       71.55
          7 |         97        0.97       72.52
          8 |         93        0.93       73.45
          9 |        110        1.10       74.55
         10 |        125        1.25       75.80
         11 |        123        1.23       77.03
         12 |        134        1.34       78.37
         13 |        132        1.32       79.69
         14 |        152        1.52       81.21
         15 |        141        1.41       82.62
         16 |        166        1.66       84.28
         17 |        148        1.48       85.76
         18 |        144        1.44       87.20
         19 |        128        1.28       88.48
         20 |        150        1.50       89.98
         21 |        126        1.26       91.24
         22 |        122        1.22       92.46
         23 |        103        1.03       93.49
         24 |        102        1.02       94.51
         25 |         85        0.85       95.36
         26 |         75        0.75       96.11
         27 |         61        0.61       96.72
         28 |         61        0.61       97.33
         29 |         47        0.47       97.80
         30 |         47        0.47       98.27
         31 |         32        0.32       98.59
         32 |         23        0.23       98.82
         33 |         21        0.21       99.03
         34 |         19        0.19       99.22
         35 |          5        0.05       99.27
         36 |         14        0.14       99.41
         37 |         10        0.10       99.51
         38 |         10        0.10       99.61
         39 |          8        0.08       99.69
         40 |          2        0.02       99.71
         41 |          5        0.05       99.76
         42 |          4        0.04       99.80
         43 |          4        0.04       99.84
         44 |          1        0.01       99.85
         45 |          3        0.03       99.88
         46 |          2        0.02       99.90
         47 |          4        0.04       99.94
         48 |          2        0.02       99.96
         49 |          1        0.01       99.97
         54 |          1        0.01       99.98
         56 |          1        0.01       99.99
         88 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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