Thanks for the data!
I prefer to have a column for each system, so I reformatted the data a bit. It is easier to show the total units at the bottom this way.
I also added the hardware and software totals (VGC data and official Nintendo data) for validation/comparison... couldn't find official cumulative hardware or software sales for each PlayStation system.
Your GB data is 1.7 million units higher and your N64 data is 1.5 million units higher than Nintendo's offical numbers, better recheck them.