Thanks to the Eurocrisis, sales to Europe by the Perth Mint have jacked up to 69% of total output, up from 51% as of a year ago. The main source of the new demand was Germany. The article notes that Germans are not only buying gold but also are loading up on silver.
Perhaps that's because gold is becoming too expensive. Silver tends to take off in the later stages of a gold bull market, when gold has already advanced considerably.