A video game company lists the global sales (in millions) of its top nine titles in 2020 and 2021. In 2020 the sales are 50.2, 30.3, 25.4, 20.1, 18.9, 17.5, 16.0, 15.2, 10.7. In 2021 the sales are 52.5, 35.6, 27.8, 21.7, 19.4, 18.2, 17.3, 15.8, 11.1. How much greater, to the nearest tenth of a million, is the median sales figure in 2021 than the median in 2020?