As of my knowledge cutoff in September 2021, Germany has been leading in terms of recycling rates in Europe, including plastic recycling. According to Eurostat data, Germany had a plastic packaging recycling rate of 48.8% in 2018.
However, it’s important to note that recycling rates can vary significantly depending on the specific type of plastic and the measurement criteria used. For example, some countries might have higher recycling rates for certain types of plastic or for plastic packaging specifically.
For the most current and accurate data, I recommend checking the latest reports or statistics from reliable sources such as Eurostat or the European Environment Agency.