Spotify last publicly updated its user figures in March 2013, when it said it had 24m active users and 6m paying subscribers. Since then, the company has doggedly stuck to these stats, with the assumption being that it’s holding out until it reaches the 10m subscribers milestone. However, Facebook is one source of data on how much Spotify has grown over the last year: the social network’s stats suggest that Spotify now has 32.9m monthly active users (MAUs), up from 28.4m at the end of 2013. The caveat is that these figures only cover users who’ve connected their Spotify accounts to Facebook: any that haven’t won’t be counted. Even so, the Facebook data suggests that Spotify increased its MAUs by 37% in the year since it last announced figures. What’s more – and this really IS speculative – if Spotify has maintained a similar conversion rate of free-to-paid users (25%), it should be on around 8.2m paying subscribers by now. What we don’t know – and won’t until the company updates its official figures – is whether that conversion rate has improved or fallen back over that last year of rapid expansion, not to mention boosting its free offering on mobile.