Passage: The +Teamgeist (German pronunciation: [ˈtiːmgaɪ̯st]) was the official match ball for the 2006 FIFA World Cup in Germany. The plus sign in its name was introduced for trademark purposes, since the regular German word Teamgeist, meaning "team spirit", could not be trademarked.

Question: In what year was the +Teamgiest the official match ball?
2006