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Pictured: A pair of Swiss postboxes. Photo credit: Claudio Schwarz/Unsplash 

The biggest improver in the top ten was Austria, which increased its index score by 9.04.

The USPS, currently in the spotlight as the United States gears up for a presidential election in which postal voting will be more popular than ever due to the coronavirus pandemic, is ranked eighth with a score of 77.9.

Luxembourg’s post office was listed in 63rd place with a score of 41.69.

This chart shows the Index scores of the world's top performing national postal services in 2019

Originally published by Statista. Data for Luxembourg added by Delano.