The gaming console market saw $18 billion in revenue in 2007, a 40% increase from 2006. The fastest growing demographic for gamers is those over 50 years old, making up 25% of the market. Nintendo Wii has sold 34 million units worldwide as of 2008, leading global sales. The Xbox 360 has sold over 22 million units globally but leads in European sales with 6 million units. The PlayStation 3 has sold 16.84 million units worldwide but leads in Japan with 7 million units sold.