Slovakia – Source: Institute for Environment Policy report, November 2018
Denmark – Source: 2019 data from Dansk Retursystem A/S https://www.danskretursystem.dk/presse/#/pressreleases/danskerne-panter-som-aldrig-foer-2982130.
Spain – Source: 2017 Ecoembes
Eunomia/EFBW/Petcore Europe/PRE 2020, based on 2017-2020 data