CREATE TABLE table_64748 ("Year" FLOAT, "Competition" TEXT, "Venue" TEXT, "Position" TEXT, "Notes" TEXT)

What was the earliest year with a note of 18.04 m wl?
SELECT MIN("Year") FROM table_64748 WHERE "Notes" = '18.04 m wl'
SELECT MIN("Year") FROM "table_64748" WHERE "Notes" = '18.04 m wl'