Question: Since when has the Austrian party which is a member of Europe of Nations and Freedom had its current chair?
Sentence (from "Heinz-Christian Strache"): Heinz-Christian Strache (born 12 June 1969) is an Austrian right-wing politician, a member of parliament and former member of the Vienna city council, who has been Chairman of the Freedom Party of Austria (FPÖ) since 2005.
Relevant evidence: Yes