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

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        400        4.00        4.00
          2 |        368        3.68        7.68
          3 |        388        3.88       11.56
          4 |        278        2.78       14.34
          5 |        304        3.04       17.38
          6 |        325        3.25       20.63
          7 |        367        3.67       24.30
          8 |        327        3.27       27.57
          9 |        270        2.70       30.27
         10 |        429        4.29       34.56
         11 |        341        3.41       37.97
         12 |        338        3.38       41.35
         13 |        361        3.61       44.96
         14 |        348        3.48       48.44
         15 |        321        3.21       51.65
         16 |        356        3.56       55.21
         17 |        351        3.51       58.72
         18 |        321        3.21       61.93
         19 |        320        3.20       65.13
         20 |        236        2.36       67.49
         21 |        299        2.99       70.48
         22 |        369        3.69       74.17
         23 |        345        3.45       77.62
         24 |        271        2.71       80.33
         25 |        310        3.10       83.43
         26 |        285        2.85       86.28
         27 |        292        2.92       89.20
         28 |        250        2.50       91.70
         29 |        306        3.06       94.76
         30 |        337        3.37       98.13
         31 |        178        1.78       99.91
         99 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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