For once it‘s worth looking at the comment section here

Crazy that this is in such a stark contrast to manufactoring labor productivity in Germany (not quite the same statistic though: different timeline & output per worker, from here: www.wirtschaftsdienst.eu/inhalt/jahr/... )

It looks like not all Germans living in Spain are living in Mallorca after all!
(Map created with a tool by Pablo García-Guzmán: pablogguz.shinyapps.io/dataviz_migr...)