I would assign the probabilities at 37 percent that au dips below 1000 in the next five years and 58 percent that it exceeds 2750. There is a 10 percent chance it will exceed 3,300. And a four pecent chance it will be below 800.00.
Some time in the next 12 years I would say there is an 85 percent probability it will exceed 2500.00.
However I had trouble in calculus so I would ignore what I just wrote