Facebook’s strong growth continued into the fourth quarter of 2015, with the company posted record earnings for the quarter and the year. The company earned $3.69 billion on $17.93 billion in revenue in 2015; revenue was up 44 percent from 2014. On average, 1.04 billion people use Facebook every day, up 17 percent from the previous year. Close to 1 billion people — 934 million — use Facebook every day on a mobile device, up 25 percent. “2015 was a great year for Facebook,” CEO Mark Zuckerberg said in a statement. “Our community continued to grow and our business is thriving. We continue to invest in better serving our community, building our business, and connecting the world.”