Can anyone tell me how many random encounters there are?

I've always been curious about this. Multiple times I have tried to find the exact number of random encounters in the game, but it just doesn't happen. I heard somewhere it was somewhere around 130. Elsewhere it said that the exact number hadn't been determined yet. I think I even heard that there were 300 of them. Can someone confirm how many there are? Just out of curiosity. Thanks in advance.