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The list has been led for years by Finland, followed by Denmark, Iceland, Sweden, the Netherlands and Norway, among others.

The 2022 Norway health and wellbeing survey asked participants to identify if they used any digital media after they had gone to bed, as well as activities they engaged.

Mr Tao is now preparing for his return home in May and hopes to drive back via Denmark, Norway and Finland.

The club, based in the south-west of Norway close to the city of Stavanger, were promoted back to the top-flight last season for the first time since 2003.

After he took it to Norway, the piece adorned the walls of Oslo University Hospital for nearly half a century, largely unnoticed by the art world.