The Sun reached an audience of 22.2 million people in Britain last month through print, online and mobile media combined, the newspaper has announced.

Its combined audience has grown 13 percent year-on-year, helped by its September Audit Bureau of Circulations figure of 3,213,756 copies, the Guardian reported Monday.

The Sun is the only newspaper that reports its combined aggregate audience figure across all platforms, the Guardian article stated.

“Taking into account the audience of all three of our platforms, The Sun is going from strength to strength,” Mike Anderson, managing director of News Group Newspapers, which publishes the Sun and the News of the World, told the Guardian. “What we are seeing is not a one-off. We are seeing continual growth.”

The Sun's aggregate figure that includes online and mobile relies on estimates and is not audited, unlike the official ABC figure for the paper's print version. September readership figures hit 15.7 million, the Sun reported, based on ABC and National Readership Survey statistics.