So if this trend holds true again, how does the ratio fall? i.e. Does gold drop?, silver increase?, both? And has it happened the same way each time?
That's the danger of time periods. You need to go back to at least the early 1970s and follow the GSR through an entire bull-bear market cycle.
not important; whats important to you is that according to graph accumulate bit more silver then when GSR drops to eg. 30 you sell it no matter what the price and buy the gold
I have heard in the earth the real ratio is somewhere between 17:1 and 15:1. I think as some point in the distant future this will become the actual value ration at which point I will swap my silver for gold.
Are there any detailed charts showing the AU/AG ratio of the 1930's? As we edge closer to the current financial morass, this may be of more importance.