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

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        400        4.00        4.00
          2 |        427        4.27        8.27
          3 |        315        3.15       11.42
          4 |        303        3.03       14.45
          5 |        303        3.03       17.48
          6 |        335        3.35       20.83
          7 |        339        3.39       24.22
          8 |        312        3.12       27.34
          9 |        338        3.38       30.72
         10 |        366        3.66       34.38
         11 |        302        3.02       37.40
         12 |        277        2.77       40.17
         13 |        346        3.46       43.63
         14 |        238        2.38       46.01
         15 |        327        3.27       49.28
         16 |        330        3.30       52.58
         17 |        341        3.41       55.99
         18 |        341        3.41       59.40
         19 |        324        3.24       62.64
         20 |        309        3.09       65.73
         21 |        335        3.35       69.08
         22 |        320        3.20       72.28
         23 |        326        3.26       75.54
         24 |        336        3.36       78.90
         25 |        339        3.39       82.29
         26 |        338        3.38       85.67
         27 |        314        3.14       88.81
         28 |        355        3.55       92.36
         29 |        311        3.11       95.47
         30 |        183        1.83       97.30
         31 |        243        2.43       99.73
         99 |         27        0.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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