From other comments, it seems many people don't realize that there are 11 more languages than these 24 official (this is mentioned in the paper): Arabic, Catal

From other comments, it seems many people don't realize that there are 11 more languages than these 24 official (this is mentioned in the paper): Arabic, Catalan, Chinese, Galician, Hindi, Japanese, Korean, Norwegian, Russian, Turkish, and Ukrainian.