I was going to make this a comment, but it's much too long. I couldn't find official statistics, but I think this is enough to offer as an answer:
Based upon what is currently available, the Pearl of Great Price and Doctrine and Covenants can be purchased separately in the following 11 languages:
However, the Pearl of Great Price and Doctrine and Covenants are much more typically combined with The Book of Mormon as the Triple Combination available in the following 33 languages:
By addition, (there are no exact duplicates) both books are currently available from LDS Distribution in 44 languages. By no means does this mean it is not available at least in part in other languages (LDS.org now serves content in your choice of 100 languages, most of which I do not understand).