The offences I've seen in the data set I can go back to in 1994 under Roc85 have a difficulty around robbery as an offence between 1994, 1995, and January 1, 1996, and robbery with those sentencing provisions afterwards. If there was a distinction prior to that date for bank robbery with a firearm, for example, I'm not aware of that.
On November 22nd, 2006. See this statement in context.