Frequencies for first 10,000 rows of day variable in person dataset :

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        408        4.08        4.08
          2 |        360        3.60        7.68
          3 |        308        3.08       10.76
          4 |        342        3.42       14.18
          5 |        280        2.80       16.98
          6 |        347        3.47       20.45
          7 |        328        3.28       23.73
          8 |        311        3.11       26.84
          9 |        308        3.08       29.92
         10 |        364        3.64       33.56
         11 |        316        3.16       36.72
         12 |        320        3.20       39.92
         13 |        295        2.95       42.87
         14 |        341        3.41       46.28
         15 |        379        3.79       50.07
         16 |        299        2.99       53.06
         17 |        343        3.43       56.49
         18 |        384        3.84       60.33
         19 |        374        3.74       64.07
         20 |        316        3.16       67.23
         21 |        351        3.51       70.74
         22 |        292        2.92       73.66
         23 |        299        2.99       76.65
         24 |        357        3.57       80.22
         25 |        309        3.09       83.31
         26 |        312        3.12       86.43
         27 |        354        3.54       89.97
         28 |        287        2.87       92.84
         29 |        232        2.32       95.16
         30 |        293        2.93       98.09
         31 |        190        1.90       99.99
         99 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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