Politicizing September 11th

Here's the rundown of President Bush's September 11th commemorations:

2002
Words in Address: 906
References to Iraq: 0 (no Iraq War, yet)

2003
Words in Address: 99
References to Iraq: 0

2004
Words in Address: 720
References to Iraq: 4

2005
Words in Address: No address -- just a moment of silence
References to Iraq: 0

2006
Words in Address: 2,623
References to Iraq: 16

Notice any trends?

It seems there's something about even numbered years, especially the current one, that gets Bush really worked up on the anniversary of September 11...I wonder what it could be.