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

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        372        3.72        3.72
          2 |        343        3.43        7.15
          3 |        310        3.10       10.25
          4 |        352        3.52       13.77
          5 |        319        3.19       16.96
          6 |        331        3.31       20.27
          7 |        316        3.16       23.43
          8 |        337        3.37       26.80
          9 |        388        3.88       30.68
         10 |        349        3.49       34.17
         11 |        303        3.03       37.20
         12 |        304        3.04       40.24
         13 |        343        3.43       43.67
         14 |        307        3.07       46.74
         15 |        286        2.86       49.60
         16 |        305        3.05       52.65
         17 |        375        3.75       56.40
         18 |        333        3.33       59.73
         19 |        279        2.79       62.52
         20 |        345        3.45       65.97
         21 |        370        3.70       69.67
         22 |        366        3.66       73.33
         23 |        272        2.72       76.05
         24 |        366        3.66       79.71
         25 |        288        2.88       82.59
         26 |        318        3.18       85.77
         27 |        324        3.24       89.01
         28 |        357        3.57       92.58
         29 |        254        2.54       95.12
         30 |        281        2.81       97.93
         31 |        196        1.96       99.89
         99 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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