Over the past decade social media usage has been one of the most rapidly and universally adopted activities since the invention of breathing. More than half of the world’s 2.4 billion Internet users sign in to a social network regularly — a figure that is rapidly increasing.SEE ALSO: Biggest Social Media Moments of 2012Even without China, the world’s largest Internet population, Facebook boasts more than 1 billion active users. From Facebook on down the line, the figures for social media adoption are impressive.Check out the following infographic, made by Social Jumpstart and hasai, for more information about global social media usage.