Each week, I think, are total hardware numbers upto that week for each console. Looking at week six, the Switch has sold 2,399,000 consoles so far roughly this year, for example.

March 12th

This is the first 6 weeks of YTD sales for each console listed, using VG Chartz numbers (in thousands).

IE, according to VG Chartz, the Switch as sold 2,399K (aka 2.399 million) units through 6 weeks (ending Feb 13 - this thread).  The other columns are the same data for systems listed and their listed years.  At the very top, you can see the final total for each console in that year (ex NDS 07 29.311 million).  

Through six weeks, 2.399 million is the best start ever going by VG Chartz numbers.  The next best is NDS 07 at 2.350 million.  And on and on.

Considering the period, the whole latest gen sells from more than decent, XS, to excellent, NS. Both PS5 and XS could sell more than what Sony and MS can currently produce, NS still very strong and currently untouchable leader, probably 9th gen won't outsell 7th overall, with its three strong home consoles and one stellar and one very good portable, but with NS quite surely going to outsell 3DS and WiiU combined, if both PS5 and XS will do well enough lifetime, this gen will outsell the previous by a healthy margin.

Hopefully the first year a console crosses 30mil

I think you mixed up the PS5 and Xbox Series numbers.

If aple made the series X it would probably be cylindrical instead of a rectangular cuboid. 

It would also be 3 times more expensive and yet 5 times more successful.

And require a $100 custom Apple power adaptor and a $200 custom Apple HDMI cable, neither of which come bundled with the system.

And after all that the performance would be the same but people swear its better.