In the UK Vodaphone offered free 1GB of 4G in september to me and I assume other subscribers. I wonder if that was to help boost these numbers, or was just marketing.
65,110,000 [1] * 90% [2] * 18.2% [3] = 10665018 subscribers
10PB / 10665018 = 937MB per subscriber per month.
[1] Total population of the UK, https://en.wikipedia.org/wiki/United_kingdom
[2] Guestimate for market penetration figure
[3] Vodafone's market share: https://www.statista.com/statistics/375986/market-share-held...