I’ve transferred the data over from the old spreadsheet since I no longer have access to edit it. This one can be printed as a checklist for anyone looking to complete the code variations. The missing codes were added as were the rules for how the codes are assigned for each set. I went through the other languages and found several exceptions, which are also listed.
I will be working on Japanese eventually, but this is a lot of work as is, so it will likely take months. If anyone would like to contribute, please let me know!