Frequencies for first 10,000 rows of p2 variable in miper dataset :

         p2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,599       65.99       65.99
          1 |         32        0.32       66.31
          2 |         61        0.61       66.92
          3 |         69        0.69       67.61
          4 |         66        0.66       68.27
          5 |         79        0.79       69.06
          6 |         84        0.84       69.90
          7 |        110        1.10       71.00
          8 |         97        0.97       71.97
          9 |        135        1.35       73.32
         10 |        124        1.24       74.56
         11 |        125        1.25       75.81
         12 |        148        1.48       77.29
         13 |        165        1.65       78.94
         14 |        175        1.75       80.69
         15 |        159        1.59       82.28
         16 |        165        1.65       83.93
         17 |        138        1.38       85.31
         18 |        146        1.46       86.77
         19 |        130        1.30       88.07
         20 |        158        1.58       89.65
         21 |        146        1.46       91.11
         22 |        131        1.31       92.42
         23 |        111        1.11       93.53
         24 |         96        0.96       94.49
         25 |         95        0.95       95.44
         26 |         81        0.81       96.25
         27 |         76        0.76       97.01
         28 |         64        0.64       97.65
         29 |         43        0.43       98.08
         30 |         31        0.31       98.39
         31 |         26        0.26       98.65
         32 |         32        0.32       98.97
         33 |         16        0.16       99.13
         34 |         19        0.19       99.32
         35 |         10        0.10       99.42
         36 |         10        0.10       99.52
         37 |          7        0.07       99.59
         38 |         14        0.14       99.73
         39 |          9        0.09       99.82
         40 |          3        0.03       99.85
         41 |          3        0.03       99.88
         42 |          1        0.01       99.89
         43 |          2        0.02       99.91
         44 |          2        0.02       99.93
         45 |          1        0.01       99.94
         46 |          1        0.01       99.95
         48 |          1        0.01       99.96
         49 |          1        0.01       99.97
         56 |          1        0.01       99.98
         59 |          1        0.01       99.99
         80 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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