If you look at the cocaine seizures in UE, last years it has been consistently around 210 tones a year.
Also consistently over 70 % of the total has been seized in Belgium, Neterlands and Spain in that order.
But, no matter where it has been seized, you get the impression that Albanians teamed with italians are the big ones here. Sure they have dutch and spanish crews working with them to recibe the drug (speaking Spanish is a good skill when you import something from SA), aswell as they work with other balkan mafias, but I think they all are secondary gamers.
Just like turkish have the big hand on heroin and they work with others or like spanish and morrocan gangs are the main players in cannabis but they need cooperation beyond the Pirineos.
About production yes, Perú is the place now it seems. There is an incredible remote area that they call VRAEM, valleys of rivers Apurimac, Ene and Mantaro, where they produce over 33% of SA cocaine, reports say. Said place is a wild mountanious jungle, remote enough to allow the last members of what once was the Shining Path guerrilla to hide for 40 years now. Apparently, they give security to the narco routes there. US have placed a $5 millions reward on their leader's head.