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

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        321        3.21        3.21
          2 |        342        3.42        6.63
          3 |        327        3.27        9.90
          4 |        375        3.75       13.65
          5 |        335        3.35       17.00
          6 |        331        3.31       20.31
          7 |        370        3.70       24.01
          8 |        315        3.15       27.16
          9 |        365        3.65       30.81
         10 |        357        3.57       34.38
         11 |        320        3.20       37.58
         12 |        349        3.49       41.07
         13 |        352        3.52       44.59
         14 |        335        3.35       47.94
         15 |        364        3.64       51.58
         16 |        351        3.51       55.09
         17 |        271        2.71       57.80
         18 |        256        2.56       60.36
         19 |        353        3.53       63.89
         20 |        342        3.42       67.31
         21 |        276        2.76       70.07
         22 |        273        2.73       72.80
         23 |        315        3.15       75.95
         24 |        325        3.25       79.20
         25 |        297        2.97       82.17
         26 |        336        3.36       85.53
         27 |        336        3.36       88.89
         28 |        326        3.26       92.15
         29 |        315        3.15       95.30
         30 |        277        2.77       98.07
         31 |        184        1.84       99.91
         99 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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