Very carefully-chosen figures, though. Spotify’s infographic celebrating its one-year anniversary in the US doesn’t shed any light on its number of overall users or paying subscribers there. Instead, it says that American users have listened to more than 13bn songs, and shared 27.8m with friends.

The sharing figure is broken down though: 55.3% of those shares went to Facebook, 41.5% to other Spotify users, 2.7% to Twitter and 0.3% to ‘other’ services. Spotify also says that users have spent more than 23.7m hours using Spotify apps in its desktop client in the US alone.

There’s some interesting data from digital distributor Ditto Music to accompany this, though. In another infographic based on 2011 payouts to its clients, Ditto notes that Spotify pays $0.0051 per free stream in the US, $0.0078 per unlimited stream (its mid-tier subscription) and $0.0153 per premium stream – three times the free payout.

The same infographic points to iTunes’ standard $0.71 payout for a $0.99 download – meaning around 47 premium plays on Spotify. For songs that are loved, these numbers are starting to look more balanced, although as ever this is about scale (or rather potential scale), not just a per-stream/download comparison.