Seeing Litecoin there in 3rd place really is an unexpected surprise but in the end it is being used because it serves a purpose for the end user. What is interesting are the statistics surrounding XMR, it is still reigning supreme head and shoulders above second placed Bitcoin. With regulated exchanges being pressured to drop Monero, I did not expect to see it holding that much percentage.
Uh, Litecoin is third with 16%, I didn't expect an altcoin dinosaur to still enjoy so much trust. I assume that due to the low fee, it is ideal for withdrawing assets from large exchanges, and then immediately converting them to BTC or XMR.