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

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        357        3.57        3.57
          2 |        266        2.66        6.23
          3 |        388        3.88       10.11
          4 |        327        3.27       13.38
          5 |        396        3.96       17.34
          6 |        318        3.18       20.52
          7 |        392        3.92       24.44
          8 |        349        3.49       27.93
          9 |        403        4.03       31.96
         10 |        276        2.76       34.72
         11 |        401        4.01       38.73
         12 |        350        3.50       42.23
         13 |        363        3.63       45.86
         14 |        268        2.68       48.54
         15 |        320        3.20       51.74
         16 |        295        2.95       54.69
         17 |        261        2.61       57.30
         18 |        335        3.35       60.65
         19 |        299        2.99       63.64
         20 |        284        2.84       66.48
         21 |        333        3.33       69.81
         22 |        350        3.50       73.31
         23 |        264        2.64       75.95
         24 |        350        3.50       79.45
         25 |        406        4.06       83.51
         26 |        298        2.98       86.49
         27 |        312        3.12       89.61
         28 |        294        2.94       92.55
         29 |        295        2.95       95.50
         30 |        235        2.35       97.85
         31 |        214        2.14       99.99
         99 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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