Frequencies for first 10,000 rows of p10 variable in miper dataset :

        p10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,493       74.93       74.93
          1 |         40        0.40       75.33
          2 |         66        0.66       75.99
          3 |         57        0.57       76.56
          4 |         57        0.57       77.13
          5 |         67        0.67       77.80
          6 |         73        0.73       78.53
          7 |         68        0.68       79.21
          8 |         87        0.87       80.08
          9 |         89        0.89       80.97
         10 |         87        0.87       81.84
         11 |        103        1.03       82.87
         12 |        102        1.02       83.89
         13 |         94        0.94       84.83
         14 |        114        1.14       85.97
         15 |        111        1.11       87.08
         16 |         96        0.96       88.04
         17 |        111        1.11       89.15
         18 |        107        1.07       90.22
         19 |         91        0.91       91.13
         20 |        105        1.05       92.18
         21 |        106        1.06       93.24
         22 |         90        0.90       94.14
         23 |         79        0.79       94.93
         24 |         71        0.71       95.64
         25 |         75        0.75       96.39
         26 |         65        0.65       97.04
         27 |         47        0.47       97.51
         28 |         46        0.46       97.97
         29 |         34        0.34       98.31
         30 |         37        0.37       98.68
         31 |         21        0.21       98.89
         32 |         25        0.25       99.14
         33 |         11        0.11       99.25
         34 |         10        0.10       99.35
         35 |         15        0.15       99.50
         36 |          7        0.07       99.57
         37 |          9        0.09       99.66
         38 |          3        0.03       99.69
         39 |          5        0.05       99.74
         40 |          3        0.03       99.77
         41 |          1        0.01       99.78
         42 |          4        0.04       99.82
         43 |          6        0.06       99.88
         44 |          2        0.02       99.90
         45 |          1        0.01       99.91
         47 |          1        0.01       99.92
         48 |          2        0.02       99.94
         49 |          1        0.01       99.95
         50 |          2        0.02       99.97
         54 |          1        0.01       99.98
         60 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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