CREATE TABLE table_204_590 (id DECIMAL, "year" DECIMAL, "division" DECIMAL, "league" TEXT, "regular season" TEXT, "playoffs" TEXT, "open cup" TEXT, "avg. attendance" DECIMAL)

in those years in which the team finished its regular season lower than 2nd place , which year also had the least average attendance ?
SELECT "year" FROM table_204_590 ORDER BY "avg. attendance" LIMIT 1
SELECT "year" FROM "table_204_590" ORDER BY "avg. attendance" NULLS FIRST LIMIT 1