I've been looking up old NPD figures for PS2 and decided it might be fun to compare them to PS4.

Year PS2 LTD Year PS4 LTD
2000 1.10m 1.10m 2013 2.00m 2.00m
2001 6.18m 7.28m 2014 4.68m 6.68m
2002 8.39m 15.67m 2015 5.73m 12.41m
2003 6.31m 21.98m 2016 5.20m 17.61m
2004 4.59m 26.57m 2017 5.44m 23.05m
2005 5.51m 32.08m 2018    
2006 5.07m 37.15m 2019    
2007 3.97m 41.12m
2008 2.50m 43.62m
2009 1.80m 45.42m

When the herd loses its way, the shepard must kill the bull that leads them astray.