<note xmlns="http://www.tei-c.org/ns/1.0" n="1" rend="footnote text" xml:id="ftn1"> All data produced for this paper can be downloaded here: <ptr target="https://doi.org/10.5281/zenodo.3598515" />. </note> <note xmlns="http://www.tei-c.org/ns/1.0" n="2" rend="footnote text" xml:id="ftn2"> In this and the following figure, the font groups “other font” and “not a font” are not shown as they would mainly represent noise (images, blank pages, tables etc.). </note>