CREATE TABLE table_9141 ("Country" TEXT, "First store" TEXT, "Hypermarkets" FLOAT, "Supermarkets" TEXT, "Hard Discounters" TEXT, "Cash & Carry" TEXT)

What year was the first store that had a hypermarket of 3?
SELECT "First store" FROM table_9141 WHERE "Hypermarkets" = '3'
SELECT "First store" FROM "table_9141" WHERE "Hypermarkets" = '3'