TWRoO on 06 January 2010
^You don't have to follow sales by fiscal year. I can't be bothered to check now (using Wii browser) but I think the PS2 did rise again... In calendar years I think 2002 was it's peak, but the slim released in 2004 to give it a boost.... Like I said, i don't want to check now myself, but to see sales rises and falls you need to look in more detail than per year, try looking at the aligned launch graph with weeks set to max (I think 400 is max.. so nearly 8 years) specifically for PS2, but check the other 6th gen consoles, and the hanhelds too.
And to be honest, what I suggested is hardly a second coming.... 26mil down to 20 then to 23 is more of a sustained plateau than anything else (ie like the DS)
Essay Pro