CREATE TABLE table_23374 ("Year" TEXT, "Division" TEXT, "League" TEXT, "Regular Season" TEXT, "Playoffs" TEXT, "Open Cup" TEXT)

When divisional semifinals are the playoffs what is the year?
SELECT "Year" FROM table_23374 WHERE "Playoffs" = 'Divisional Semifinals'
SELECT "Year" FROM "table_23374" WHERE "Playoffs" = 'Divisional Semifinals'