News Summary

• In the version of this article initially published, the monetary time-series-related results in Figs.
• 6 and 7 were presented in current Euros, not constant Euros.
• The figures have been updated to constant Euros in the HTML and PDF versions of the article.
• For comparison, the original figures are available as Supplementary Information accompanying this article.
• The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material.