Commodity20072008200920102011
Silver (incl. silver plated with gold/platinum), in powder form  $1,277  
Silver (incl. silver plated with gold/platinum), unwrought$5,239$6,756  $5,170
Silver (incl. silver plated with gold/platinum), in semi-manufactured forms ...$5,629 $3,186$4,591 
Total$10,868$6,756$4,463$4,591$5,170