Help finding what years were grouped together for the FUSO Canter / FG 140 In Canada and the US?

[Ninja Truck]

Good day everyone I'm trying to figure out what years were grouped together on the different gens of FUSO Canter / FG 140 in Canada and the US? I have found some numbers but have also found conflicting years as well; any help would be greatly appreciated.

Cheers