It's a difficult question, because there are large numbers of applications that continue to come in. Even if you were processing cases in real time and everything was in the service standard, you're still going to have hundreds of thousands of cases that are pending at any given point in time. It would depend on which stream you're talking about. It would depend on what you would like to reduce a level to.
On February 15th, 2022. See this statement in context.