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

        p10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,502       75.02       75.02
          1 |         39        0.39       75.41
          2 |         56        0.56       75.97
          3 |         57        0.57       76.54
          4 |         55        0.55       77.09
          5 |         53        0.53       77.62
          6 |         54        0.54       78.16
          7 |         63        0.63       78.79
          8 |         96        0.96       79.75
          9 |         90        0.90       80.65
         10 |         77        0.77       81.42
         11 |        117        1.17       82.59
         12 |        100        1.00       83.59
         13 |         94        0.94       84.53
         14 |        126        1.26       85.79
         15 |        121        1.21       87.00
         16 |        112        1.12       88.12
         17 |        101        1.01       89.13
         18 |        118        1.18       90.31
         19 |        102        1.02       91.33
         20 |        102        1.02       92.35
         21 |         75        0.75       93.10
         22 |         89        0.89       93.99
         23 |         94        0.94       94.93
         24 |         62        0.62       95.55
         25 |         58        0.58       96.13
         26 |         60        0.60       96.73
         27 |         54        0.54       97.27
         28 |         39        0.39       97.66
         29 |         30        0.30       97.96
         30 |         26        0.26       98.22
         31 |         25        0.25       98.47
         32 |         25        0.25       98.72
         33 |         19        0.19       98.91
         34 |         14        0.14       99.05
         35 |         13        0.13       99.18
         36 |         14        0.14       99.32
         37 |          4        0.04       99.36
         38 |          8        0.08       99.44
         39 |         10        0.10       99.54
         40 |         10        0.10       99.64
         41 |          8        0.08       99.72
         42 |          1        0.01       99.73
         43 |          3        0.03       99.76
         44 |          4        0.04       99.80
         45 |          3        0.03       99.83
         46 |          4        0.04       99.87
         47 |          3        0.03       99.90
         48 |          3        0.03       99.93
         49 |          4        0.04       99.97
         50 |          1        0.01       99.98
         51 |          1        0.01       99.99
         59 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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