Why so few old Falcons remaining compared to Commodores?

[MrZ]

I've just been looking up statistics online - if we look at old Falcons vs. Commodores, there are about 3 times as many Commodores left on the roads than Falcons. See numbers here:

Commodore:

1996 6293 7%
1997 6284 8%
1998 8975 9%
1999 14558 17%

Falcon:

1996 2212 3%
1997 2232 3%
1998 2439 3%
1999 4187 6%

Here's where things get weird - if we look at 2003 models (BA vs VY) a higher percentage of Falcons remain compared with Commodores! It's about 50% vs 40%. (how can Falcon go from 50% of 2003's remaining to 6% of 1999s! In the space of 4 years... wow!)

Note: the above figures are only for sedans and wagons, and don't include utes. Falcon figures include Fairmont, while Commodore include Calais.