However, the retailer also disclosed in its trading statement today that its average order size had fallen over the same period by 2.9% to £111.41. Ocado's overall sales, including revenue from its distribution deal with Morrisons, grew 15.3% to £312.4m. Ocado and Morrisons agreed a 25-year deal in 2013 for Ocado to deliver the latter's groceries in Morrisons-branded vehicles, although Morrisons' recent deal with Amazon has led some to question the durability of the tie-up. Excluding the Morrisons revenue, Ocado sales grew 13.8% to £286.7m.