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

        p10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,475       74.75       74.75
          1 |         31        0.31       75.06
          2 |         69        0.69       75.75
          3 |         60        0.60       76.35
          4 |         63        0.63       76.98
          5 |         54        0.54       77.52
          6 |         63        0.63       78.15
          7 |         74        0.74       78.89
          8 |         87        0.87       79.76
          9 |         92        0.92       80.68
         10 |        101        1.01       81.69
         11 |        113        1.13       82.82
         12 |        115        1.15       83.97
         13 |        115        1.15       85.12
         14 |        114        1.14       86.26
         15 |        121        1.21       87.47
         16 |        106        1.06       88.53
         17 |        107        1.07       89.60
         18 |        115        1.15       90.75
         19 |        112        1.12       91.87
         20 |        100        1.00       92.87
         21 |        101        1.01       93.88
         22 |         81        0.81       94.69
         23 |         62        0.62       95.31
         24 |         68        0.68       95.99
         25 |         50        0.50       96.49
         26 |         59        0.59       97.08
         27 |         38        0.38       97.46
         28 |         33        0.33       97.79
         29 |         28        0.28       98.07
         30 |         43        0.43       98.50
         31 |         25        0.25       98.75
         32 |         27        0.27       99.02
         33 |         22        0.22       99.24
         34 |         14        0.14       99.38
         35 |         10        0.10       99.48
         36 |         10        0.10       99.58
         37 |          9        0.09       99.67
         38 |          6        0.06       99.73
         39 |          6        0.06       99.79
         40 |          4        0.04       99.83
         41 |          3        0.03       99.86
         42 |          2        0.02       99.88
         43 |          3        0.03       99.91
         44 |          3        0.03       99.94
         45 |          2        0.02       99.96
         46 |          2        0.02       99.98
         47 |          1        0.01       99.99
         49 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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