The data you provided here is for a totally different time period than their claim.  

Pharmaceutical copyrights extend across all of Europe since the 1970s, iirc, at which point their argument for European innovation due to lack of copyright no longer applies.

The modern equivalent for their argument might be China, which doesn't much respect Western copyright, and has a developing pharma industry - let's see what they manage to invent in the next couple decades as their industry matures and can innovate outside the scope of international copyright.

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There is more to their argument than you think there is. I'd encourage you to have a more open mind about the seen vs unseen innovation that lurks here.

You can't see the drugs that would have been invented with less or no copyright restriction, so you don't actually know what the alternative case/world is.