This is an outdated version published on 2021-03-23. Read the most recent version. New visualisations, same data Gary Jones (Author) Ken Welsh (Author) PDF Identifiers (Article) DOI: https://doi.org/10.11588/cifayearb.2020.1.79604 Statistics Published (Versions) 2021-03-30 (2) 2021-03-23 (1) Issue 2020: Yearbook and Directory Section Artikel