The second Grant Thornton report into the top 10 highest earners among on-air presenters on RTÉ will investigate the period from 2008 until 2022, the state broadcaster has said in response to a question from The Currency.  It also said: “The next Grant Thornton review will examine the Barter Account to ensure that there are no other instances in which it has been used incorrectly, specifically in how it relates to the earnings of top 10 most highly paid presenters 2008 -2022.”  A spokesperson for RTÉ added that the so-called barter account, from which some payments to RTÉ presenter Ryan…