December 2014 NPD: Xbox One outsells PS4 again | VentureBeat
Xbox One sales have nearly doubled since 2017 says NPD | Windows Central
Xbox One S leads the way in September 2016's NPD as PS4 Slim makes little impact - AR12Gaming
NPD: Xbox One Console Sales Outpace PS4 - GameRevolution
Read A Year's Worth Of Microsoft Spinning Xbox One NPD Sales
NPD: 1 in 3 Americans with PS4 or Xbox One owns both consoles
October NPD: Xbox One Beats PS4 In The US Once Again
NPD: 70% Of Switch Owners Also Own A PS4 Or Xbox One - NintendoSoup
Xbox One Wins September NPD, Makes it Three Months in a Row
NPD: Xbox One is the "Fastest Selling" Next Gen Console, Sold 909,132 in First 9 Days, Two Games Sold Per Unit
NPD: Xbox One is the "fastest-selling" console in November and Call of Duty leads software - GameSpot
NPD: Sony's PlayStation 4 outsells Microsoft's Xbox One for sixth month in a row
April NPD: PS4 Outsells Xbox One for the Fourth Month in a Row | Time
November 2014 NPD: Xbox One Defeats PS4, Call of Duty is #1
NPD: Xbox One was the 2nd Best selling console (after Switch) in Dec. : r/ xboxone
NPD numbers: 'Titanfall' for Xbox One was No. 1 selling game in March - The Official Microsoft Blog
Xbox One hardware sales keep going up in the US according to NPD - OnMSFT.com
Mat Piscatella on Twitter: "To celebrate the latest #InsideXbox here are the Xbox One's top 10 best-selling games, both all games and exclusives (including PC) only. Source: The NPD Group https://t.co/w8FXu3vkeR" /
Xbox One X 'performing phenomenally' says NPD | Windows Central
Xbox One selling more than twice as fast as Xbox 360 - Microsoft on NPD data | VG247
Microsoft Will Ensure Retail Is Involved With Xbox One In Spite of Game Pass, Says NPD Analyst
PS4 Outsells Xbox One in May in the US, Reversing April's NPD Result
