Frequencies for first 10,000 rows of dlmp_dd variable in natl2007 dataset :

Last Normal |
   Menses - |
    Day U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        587        5.87        5.87
          2 |        256        2.56        8.43
          3 |        250        2.50       10.93
          4 |        267        2.67       13.60
          5 |        442        4.42       18.02
          6 |        272        2.72       20.74
          7 |        287        2.87       23.61
          8 |        268        2.68       26.29
          9 |        240        2.40       28.69
         10 |        426        4.26       32.95
         11 |        227        2.27       35.22
         12 |        276        2.76       37.98
         13 |        291        2.91       40.89
         14 |        287        2.87       43.76
         15 |        738        7.38       51.14
         16 |        243        2.43       53.57
         17 |        266        2.66       56.23
         18 |        270        2.70       58.93
         19 |        254        2.54       61.47
         20 |        467        4.67       66.14
         21 |        261        2.61       68.75
         22 |        232        2.32       71.07
         23 |        247        2.47       73.54
         24 |        284        2.84       76.38
         25 |        449        4.49       80.87
         26 |        286        2.86       83.73
         27 |        243        2.43       86.16
         28 |        339        3.39       89.55
         29 |        197        1.97       91.52
         30 |        258        2.58       94.10
         31 |        110        1.10       95.20
         99 |        480        4.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015