I know that the numbers could always be higher, but missiles are complex beasts and production lines take time to set up and bastardly amounts of logistics to feed.
Here's hoping it becomes 100 missiles per month soon, and perhaps even 100 a week if the war keeps dragging on.
Careful how that is done. Hitting random things tends to make people more in favor of war - get back at those who destroyed the neighbor's house. Hit things that are more impersonal like ammunition factories instead.
I hope we get that 6B to him now, and he can turn that into something he can use to produce more of things like this, because I have no hope Trump will support Ukraine.