Frequencies for first 10,000 rows of febrile variable in natl2001 dataset :

    Febrile |
      (>100 |
 degrees F. |
      or 38 |
degrees C.) |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        136        1.36        1.36
          2 |      9,862       98.62       99.98
          8 |          1        0.01       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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