Apparatus makers ranking by sales?

[Aaronw]

I've tried online searches but haven't been able to find anything solid.

 

Just wondering if anyone had a list of the largest apparatus makers? I assume "largest" would be based on annual sales.

 

 

Top 10, Top 20?

 

 

Strictly curiosity, I read somewhere that ALF was in the #5 spot when they went under and it got me to thinking where the others fall.