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

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        322        3.22        3.22
          2 |        379        3.79        7.01
          3 |        326        3.26       10.27
          4 |        324        3.24       13.51
          5 |        332        3.32       16.83
          6 |        397        3.97       20.80
          7 |        385        3.85       24.65
          8 |        298        2.98       27.63
          9 |        380        3.80       31.43
         10 |        343        3.43       34.86
         11 |        364        3.64       38.50
         12 |        287        2.87       41.37
         13 |        318        3.18       44.55
         14 |        365        3.65       48.20
         15 |        325        3.25       51.45
         16 |        349        3.49       54.94
         17 |        312        3.12       58.06
         18 |        332        3.32       61.38
         19 |        306        3.06       64.44
         20 |        324        3.24       67.68
         21 |        304        3.04       70.72
         22 |        313        3.13       73.85
         23 |        348        3.48       77.33
         24 |        314        3.14       80.47
         25 |        268        2.68       83.15
         26 |        327        3.27       86.42
         27 |        311        3.11       89.53
         28 |        287        2.87       92.40
         29 |        271        2.71       95.11
         30 |        248        2.48       97.59
         31 |        239        2.39       99.98
         99 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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