Nintendo News: Nintendo Systems Claim Two-Thirds of September Video Game Hardware Sales
http://www.businesswire.com/news/home/20171019005513/en/Nintendo-News-Nintendo-Systems-Claim-Two-Thirds-September

In September, the Nintendo Switch system was once again the top-selling current-generation console hardware, according to the NPD Group, which tracks video game sales in the United States.
This marks the third straight month that Nintendo Switch has been No. 1, and the fifth time overall in the seven months since its launch.
Nintendo Switch has already surpassed 2 million units sold in the U.S. alone, and has yet to go through its first holiday shopping season.