Conceptualisation: Jakob Manthey; data curation: Jakob Manthey, Carolin Kilian; formal analysis: Jakob Manthey; funding acquisition: N/A; Investigation: Jakob Manthey, methodology: Jakob Manthey; project administration: Jakob Manthey, resources: Jakob Manthey, Jürgen Rehm; software: N/A; supervision, validation: all authors, visualisation: Jakob Manthey, Carolin Kilian; writing – original draft: Jakob Manthey; writing– review & editing: all authors