here some comparison chart, 2nd image in the article below:
https://ec.europa.eu/eurostat/statistics-explained/images/th...
https://ec.europa.eu/eurostat/statistics-explained/index.php...
there are 2-2.5x times differences between highest and lowest, of 25-30 countries
And here is some current/future (??) prices/increases, which i have no idea where they come from: