CREATE TABLE table_54909 ("From" TEXT, "Adult Rate" TEXT, "Development Rate" TEXT, "16-17 Year Olds Rate" TEXT, "Apprentice Rate" TEXT)

When was there a development rate of 4.92?
SELECT "From" FROM table_54909 WHERE "Development Rate" = '£4.92'
SELECT "From" FROM "table_54909" WHERE "Development Rate" = '£4.92'