#oz * Int = Yield
x * .0183 = 365 oz yield
365 / 0.0183 = ~19,945 #oz
19,945 oz
This uses 1.83% which is the current rate, I don't know the average rate.
This ignores compounding interest, if your looking for an average of 1 bSilver a day over a years time it would be different.