GlobalWebIndex posted the following to its blog on Tuesday:

For Tuesday’s blog, we draw on more findings from our new GWI Social report (download a free summary here) to look at visit frequency on five of the biggest social networks.

As our data makes clear, Facebook (Nasdaq: FB) might be the only network to have seen a drop in active usage over the last year, but it’s still the one with by far the most engaged audience: 1 in 2 of its active users say they use it more than once a day. That puts it almost 25-points ahead of second-placed Twitter (NYSE: TWTR).

Significantly, there’s also a strong age effect at work here: the younger a Facebook user is, the more likely they are to be using the service more than once a day.

Overall, though, perhaps the most impressive metric is that just 8% of Facebook’s active users select the “less often than once a week” option. Compare that to sites like Pinterest and Tumblr, where over 4 in 10 say this, and the difference in engagement is clear.