Calendar year 2019 updated with federal FARS data which was released in late 2020. FARS data is very useful because each incident is categorized by crash type.
Updated list of all Arizona bicyclist traffic fatalities is now complete 2009 through 2020:
docs.google.com/spreadsheets/d/1IQhPFF7DELUAXMuB6J97sRY6W1rwfo2w7xXbbXwEqqE/edit?pli=1#gid=489895491
Notes: 2020 data retrieved in mid-Feb 2021, and is not final until ~ June 2021; but is believed to be complete.