In the originally published article, the monetary units used in the text describing the energy expenditure results associated with Figures 7, 12 and 17 were incorrectly stated as millions of euros (€ million).

This arose from an oversight in interpreting the × 10⁶ scaling displayed in the figures during preparation of the accompanying text. The figures themselves and the underlying calculations are correct; the error is limited to the monetary units stated in the textual discussion. The affected values should be expressed in billions of euros (€ billion) rather than millions of euros (€ million).

In the text associated with Figure 7, the following corrections should be made:

“€2.5 million” should read “€2.5 billion”.

“€1.93 million” should read “€1.93 billion”.

“€45 million” should read “€45 billion”.

“€71 million” should read “€71 billion”.

“€2.26 million” should read “€2.26 billion”.

“€4.07 million” should read “€4.07 billion”.

In the text associated with Figure 12, the following corrections should be made:

“€2.33 million” should read “€2.33 billion”.

“€2.50 million” should read “€2.50 billion”.

“€30 million” should read “€30 billion”.

“€50 million” should read “€50 billion”.

“€45 million” should read “€45 billion”.

“€71 million” should read “€71 billion”.

In the text associated with Figure 17, the following corrections should be made:

“€2.22 million” should read “€2.22 billion”.

“€2.50 million” should read “€2.50 billion”.

“€4.07 million” should read “€4.07 billion”.

These corrections are limited to the reporting of the monetary units in the accompanying text. Figures 7, 12 and 17, the underlying calculations and the numerical results remain unchanged, and these corrections do not affect the analysis or conclusions of the article.