How long has the team who owns North Shore Events Centre Vector Arena been active?
CREATE TABLE "current_clubs" (
  "club" text,
  "location" text,
  "home_venue" text,
  "capacity" text,
  "founded" real,
  "years_active" text
);
SELECT "years_active" FROM "current_clubs" WHERE "home_venue"='North Shore Events Centre Vector Arena';