The network’s core strategy is to grow its streaming membership business globally within the parameters of its profit margin targets. International streaming subscriptions increased nine-fold over this period, while international revenue increased nearly 18 times (see Figure B.31) (SEC, 2017c). Streaming revenues grew 41.1 per cent year-on-year to US$ 6.6 billion in 2018, so that Spotify now accounts for 38.4 per cent of all recorded music revenue as the single biggest music source.