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

        p10 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,478       74.78       74.78
          1 |         37        0.37       75.15
          2 |         71        0.71       75.86
          3 |         68        0.68       76.54
          4 |         61        0.61       77.15
          5 |         57        0.57       77.72
          6 |         67        0.67       78.39
          7 |         84        0.84       79.23
          8 |         80        0.80       80.03
          9 |         89        0.89       80.92
         10 |         93        0.93       81.85
         11 |        105        1.05       82.90
         12 |        115        1.15       84.05
         13 |        111        1.11       85.16
         14 |        131        1.31       86.47
         15 |         87        0.87       87.34
         16 |        111        1.11       88.45
         17 |        114        1.14       89.59
         18 |        111        1.11       90.70
         19 |         92        0.92       91.62
         20 |         98        0.98       92.60
         21 |         96        0.96       93.56
         22 |         92        0.92       94.48
         23 |         80        0.80       95.28
         24 |         79        0.79       96.07
         25 |         71        0.71       96.78
         26 |         64        0.64       97.42
         27 |         47        0.47       97.89
         28 |         29        0.29       98.18
         29 |         28        0.28       98.46
         30 |         31        0.31       98.77
         31 |         17        0.17       98.94
         32 |         21        0.21       99.15
         33 |         16        0.16       99.31
         34 |         15        0.15       99.46
         35 |          7        0.07       99.53
         36 |          8        0.08       99.61
         37 |          6        0.06       99.67
         38 |          7        0.07       99.74
         39 |          5        0.05       99.79
         40 |          3        0.03       99.82
         41 |          1        0.01       99.83
         42 |          5        0.05       99.88
         43 |          1        0.01       99.89
         44 |          4        0.04       99.93
         45 |          5        0.05       99.98
         48 |          1        0.01       99.99
         53 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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