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

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        411        4.11        4.11
          2 |        339        3.39        7.50
          3 |        341        3.41       10.91
          4 |        332        3.32       14.23
          5 |        399        3.99       18.22
          6 |        353        3.53       21.75
          7 |        317        3.17       24.92
          8 |        340        3.40       28.32
          9 |        321        3.21       31.53
         10 |        355        3.55       35.08
         11 |        369        3.69       38.77
         12 |        333        3.33       42.10
         13 |        300        3.00       45.10
         14 |        331        3.31       48.41
         15 |        314        3.14       51.55
         16 |        339        3.39       54.94
         17 |        240        2.40       57.34
         18 |        314        3.14       60.48
         19 |        310        3.10       63.58
         20 |        342        3.42       67.00
         21 |        289        2.89       69.89
         22 |        341        3.41       73.30
         23 |        273        2.73       76.03
         24 |        299        2.99       79.02
         25 |        325        3.25       82.27
         26 |        256        2.56       84.83
         27 |        327        3.27       88.10
         28 |        333        3.33       91.43
         29 |        283        2.83       94.26
         30 |        328        3.28       97.54
         31 |        230        2.30       99.84
         99 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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