Facebook may be currently facing question marks over how well it’s faring with younger users, but among those over 18 in the U.S. it remains the social network king. According to figures out today from the researchers at the Pew Research Center, the percentage of adults using the social networks of Facebook, LinkedIn, Pinterest, Twitter or Instagram to communicate with each other is now at 73%, and Facebook — the world’s largest social network with 1.19 billion users — remains the most popular in the U.S., with 71% of U.S. adults using it.

In other words, nearly all adults that responded that they are on a social network are using Facebook. That’s four percentage points up from last year’s 67%, Pew notes. It comes at a time of heightened competition: partly thanks to the rise of mobile apps — the number of people on multiple networks is now at 42%.