Question: The team Kevin Goldthwaite last played for play their home games at Providence Park since what year?
Related documents: [0]  [DOC] The Portland Timbers are an American professional soccer club based in Portland, Oregon. The Timbers compete in Major League Soccer (MLS) as a member club of the league's Western Conference.The Timbers play their home games at Providence Park since 2011 when the team began play as an expansion team in the league. [END] 
[1]  [DOC] Kevin Goldthwaite (born December 9, 1982 in Sacramento, California) is a former American soccer player who last played for Portland Timbers of Major League Soccer. [END] 
Answer: 
2011
2011