You forgot 2013.
Didn't have that book in my computer at work.
ADDED IN EDIT:Just so Curious feels better, the rule from the 2013 book:
Initiate illegal helmet contact. (butt block, face tackle, or spear)
Note: Illegal helmet contact may be considered a flagrant act. Acts to be considered flagrant include, but are not limited to:
1. Illegal helmet contact against an opponent lying on the ground.
2. Illegal helmet contact against an opponent being held up by other players, and/or
3. Illegal helmet-to-helmet contact against a defenseless opponent.
And 2011:
Initiate illegal helmet contact. (butt block, face tackle or spear)
NOTE: Illegal helmet contact may be considered a flagrant act. Acts to be considered
flagrant include, but are not limited to:
1. Illegal helmet contact against an opponent lying on the ground,
2. Illegal helmet contact against an opponent being held up by other players,
and/or
3. Illegal helmet-to-helmet contact against a defenseless opponent.
And just to be obnoxious, 2010:
Initiate illegal helmet contact. (butt block, face tackle or spear)
NOTE: Illegal helmet contact may be considered a flagrant act. Acts to be considered
flagrant include, but are not limited to:
1. Illegal helmet contact against an opponent lying on the ground,
2. Illegal helmet contact against an opponent being held up by other players,
and/or
3. Illegal helmet-to-helmet contact against a defenseless opponent.