True install base of Gen 6 and Gen 7 and a look at Gen 8

[NiKKoM]

https://www.npd.com/wps/portal/npd/us/news/press-releases/new-report-from-the-npd-group-focuses-on-core-gaming-and-core-gamers/

According to Core Gaming 2013, the latest report from global information company, the NPD Group, within the US population ages 9 and older, almost half play video games on what would be considered a core gaming device, but only 14 percent, or 37.5 million people, would be considered a core gamer*.