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

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        305        3.05        3.05
          2 |        312        3.12        6.17
          3 |        307        3.07        9.24
          4 |        321        3.21       12.45
          5 |        305        3.05       15.50
          6 |        317        3.17       18.67
          7 |        353        3.53       22.20
          8 |        337        3.37       25.57
          9 |        311        3.11       28.68
         10 |        293        2.93       31.61
         11 |        302        3.02       34.63
         12 |        351        3.51       38.14
         13 |        322        3.22       41.36
         14 |        281        2.81       44.17
         15 |        309        3.09       47.26
         16 |        368        3.68       50.94
         17 |        309        3.09       54.03
         18 |        326        3.26       57.29
         19 |        284        2.84       60.13
         20 |        305        3.05       63.18
         21 |        341        3.41       66.59
         22 |        361        3.61       70.20
         23 |        394        3.94       74.14
         24 |        318        3.18       77.32
         25 |        412        4.12       81.44
         26 |        404        4.04       85.48
         27 |        403        4.03       89.51
         28 |        292        2.92       92.43
         29 |        328        3.28       95.71
         30 |        264        2.64       98.35
         31 |        165        1.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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