Frequencies for first 10,000 rows of p3 variable in miper dataset :

         p3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,599       65.99       65.99
          1 |         27        0.27       66.26
          2 |         69        0.69       66.95
          3 |         56        0.56       67.51
          4 |         77        0.77       68.28
          5 |         74        0.74       69.02
          6 |         89        0.89       69.91
          7 |        102        1.02       70.93
          8 |        107        1.07       72.00
          9 |        118        1.18       73.18
         10 |        127        1.27       74.45
         11 |        119        1.19       75.64
         12 |        151        1.51       77.15
         13 |        145        1.45       78.60
         14 |        176        1.76       80.36
         15 |        155        1.55       81.91
         16 |        162        1.62       83.53
         17 |        157        1.57       85.10
         18 |        168        1.68       86.78
         19 |        147        1.47       88.25
         20 |        136        1.36       89.61
         21 |        126        1.26       90.87
         22 |        158        1.58       92.45
         23 |        103        1.03       93.48
         24 |        120        1.20       94.68
         25 |         86        0.86       95.54
         26 |         89        0.89       96.43
         27 |         57        0.57       97.00
         28 |         43        0.43       97.43
         29 |         38        0.38       97.81
         30 |         27        0.27       98.08
         31 |         43        0.43       98.51
         32 |         28        0.28       98.79
         33 |         26        0.26       99.05
         34 |         17        0.17       99.22
         35 |         16        0.16       99.38
         36 |         10        0.10       99.48
         37 |          9        0.09       99.57
         38 |         11        0.11       99.68
         39 |          7        0.07       99.75
         40 |          5        0.05       99.80
         41 |          1        0.01       99.81
         42 |          3        0.03       99.84
         43 |          4        0.04       99.88
         45 |          2        0.02       99.90
         46 |          2        0.02       99.92
         47 |          1        0.01       99.93
         48 |          2        0.02       99.95
         50 |          1        0.01       99.96
         53 |          2        0.02       99.98
         67 |          1        0.01       99.99
         70 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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