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

        p10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,388       73.88       73.88
          1 |         49        0.49       74.37
          2 |         52        0.52       74.89
          3 |         63        0.63       75.52
          4 |         74        0.74       76.26
          5 |         67        0.67       76.93
          6 |         72        0.72       77.65
          7 |         70        0.70       78.35
          8 |         77        0.77       79.12
          9 |         88        0.88       80.00
         10 |        117        1.17       81.17
         11 |        110        1.10       82.27
         12 |        112        1.12       83.39
         13 |        110        1.10       84.49
         14 |         95        0.95       85.44
         15 |        122        1.22       86.66
         16 |        122        1.22       87.88
         17 |        105        1.05       88.93
         18 |         99        0.99       89.92
         19 |        107        1.07       90.99
         20 |        106        1.06       92.05
         21 |        112        1.12       93.17
         22 |        106        1.06       94.23
         23 |         88        0.88       95.11
         24 |         72        0.72       95.83
         25 |         79        0.79       96.62
         26 |         58        0.58       97.20
         27 |         57        0.57       97.77
         28 |         28        0.28       98.05
         29 |         32        0.32       98.37
         30 |         26        0.26       98.63
         31 |         26        0.26       98.89
         32 |         19        0.19       99.08
         33 |          9        0.09       99.17
         34 |         14        0.14       99.31
         35 |         16        0.16       99.47
         36 |          7        0.07       99.54
         37 |          7        0.07       99.61
         38 |         11        0.11       99.72
         39 |          5        0.05       99.77
         40 |          2        0.02       99.79
         41 |          4        0.04       99.83
         42 |          3        0.03       99.86
         43 |          1        0.01       99.87
         45 |          2        0.02       99.89
         46 |          1        0.01       99.90
         47 |          1        0.01       99.91
         49 |          2        0.02       99.93
         52 |          2        0.02       99.95
         54 |          2        0.02       99.97
         57 |          1        0.01       99.98
         61 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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