English: Total number of distinct authors
Translation: ⵓⵟⵟⵓⵏ ⴰⵎⵖⵔⵓⴷ ⵏ ⵉⵎⴰⵔⴰⵜⵏ ⵉⵎⵢⴰⵍⵍⴰⵏ