Studios focus on 14-24 year olds, consistently the largest audience for movies. At just 15 percent of the U.S. population, this group purchases 21 percent of all tickets. More narrowly, 10 percent of the population are "frequent" moviegoers who attend more than one movie per month and are responsible for half of all ticket sales. Studios target this audience with PG and PG-13 fare, including 19 of 2012's top 25 releases. However, domestic demographic trends are unfavorable. While the U.S. population will increase 42 percent by 2050, this core audience will increase just 35 percent (19 million) or 475 per existing screen (see Exhibit 6).