All of the below questions can be answered on Wikipedia, and most on the Simpsons main page.
In April 2004 the cast asked for an increase in their pay per episode to $XX0,000
Number of Annie Awards won through 2006
Number of weeks "Do the Bartman", topped the UK Singles Chart
The year D’oh was added to the Oxford English Dictionary plus one
The year The Simpsons became longest-running sitcom in the United States
Number of world records from the Guinness Book of World Records held by the Simpsons
In 2002, The Simpsons rank on TV Guide's 50 Greatest TV Shows of All Time,
Simpsons sold $X,000,000,000 merchandise during the it’s first 14 months
# of video games released through 2006
Year in which the first season DVD was released and became the best-selling television DVD in history
As of 2007 Number of Emmy Awards Won
The day The Simpsons were awarded a star on the Hollywood Walk of Fame
Number of US based 7-Eleven’s converted into Kwik-E-Marts
The average numbers of viewers for the 17th season rounded down to the closest million.
As of 2007 number of peabody awards won
The season in which The Simpsons reclaimed the title of American animated show with the highest number of episodes.
Number of months to produce each episode
Birth year (last digit) of the first guest star to appear as himself
A Noble Spirit Embiggens the Smallest Man.