Year the book "Walter the Farting Dog" was first published:

2001
Walter the Farting Dog was first published in 2001, and has since sold over 1 million copies.
Source: The New Yorker, 12/4/2006

 
   
  Chemical makeup of the average fart:

59% nitrogen, 21% hydrogen, 9% carbon dioxide, 7 % methane and 4% oxygen.
According to "Why Do Men Have Nipples?"
Source: The Times (London), 1/28/2006

 
   
  Amount the average person passes gas daily:

14 times
According to "You: The Owner's Manual", by Dr. Mehmet Oz and Dr. Michael Roizen.
Source: Grand Forks Herald (N.D.), 2/16/2006