There’s a staggering new statistic in Facebook’s 10-Q SEC document today: 102 million people accessed Facebook solely from mobile in June, a massive 23% increase over the 83 million mobile-only users in March. 18.7% of its 543 million monthly mobile users don’t even visit its desktop site. That means if it can’t make its mobile advertising generate a lot more money within the next year, revenue could plummet like its stock price, down 6.2% today to $21.71.

Another dead-serious new stat is that Facebook only grew 10% to 168 million in the US this last year, compared to the global average of 29%.