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

        p10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,368       73.68       73.68
          1 |         45        0.45       74.13
          2 |         63        0.63       74.76
          3 |         69        0.69       75.45
          4 |         57        0.57       76.02
          5 |         68        0.68       76.70
          6 |         68        0.68       77.38
          7 |         76        0.76       78.14
          8 |         87        0.87       79.01
          9 |        107        1.07       80.08
         10 |         99        0.99       81.07
         11 |        118        1.18       82.25
         12 |        126        1.26       83.51
         13 |        107        1.07       84.58
         14 |        118        1.18       85.76
         15 |        101        1.01       86.77
         16 |        111        1.11       87.88
         17 |        140        1.40       89.28
         18 |         91        0.91       90.19
         19 |        113        1.13       91.32
         20 |         95        0.95       92.27
         21 |         94        0.94       93.21
         22 |        102        1.02       94.23
         23 |         82        0.82       95.05
         24 |         63        0.63       95.68
         25 |         69        0.69       96.37
         26 |         54        0.54       96.91
         27 |         54        0.54       97.45
         28 |         45        0.45       97.90
         29 |         29        0.29       98.19
         30 |         31        0.31       98.50
         31 |         17        0.17       98.67
         32 |         20        0.20       98.87
         33 |         15        0.15       99.02
         34 |         11        0.11       99.13
         35 |         15        0.15       99.28
         36 |         14        0.14       99.42
         37 |          9        0.09       99.51
         38 |          9        0.09       99.60
         39 |         10        0.10       99.70
         40 |          3        0.03       99.73
         41 |          5        0.05       99.78
         42 |          4        0.04       99.82
         43 |          2        0.02       99.84
         44 |          1        0.01       99.85
         45 |          2        0.02       99.87
         46 |          3        0.03       99.90
         47 |          3        0.03       99.93
         52 |          2        0.02       99.95
         53 |          1        0.01       99.96
         55 |          2        0.02       99.98
         61 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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