user: Question: What was the most recent year that a team located in Highland Township and a member of the West Division joined the Kensington Lakes Activities Association?
Columns: ['Team', 'Location', 'Joined', 'Conference', 'Division', 'Previous Conference']
Types: ['text', 'text', 'real', 'text', 'text', 'text']
Sample row: ['Canton Chiefs', 'Canton Township', 2008.0, 'Kensington', 'South', 'Western Lakes Activities Association']
SQL:

assistant: SELECT MAX("Joined") FROM "Table" WHERE "Division" = 'West' AND "Location" = 'Highland Township';