In which year was the party that had been represented in the Styrian parliament since 2005 formed?
Styrian state election, 2010:  The Social Democratic Party of Austria, like the Austrian People's Party, lost 2 seats - also the Communist Party of Austria, which has been represented in the Styrian parliament since 2005. Communist Party of Austria:  Established in 1918 as the Communist Party of German-Austria (KPDÖ), it is one of the world's oldest Communist parties.
1918