Doc Copper/Gold ratio about to break key support?

Keeping a close eye on the ratio of Copper -vs.- Gold can be helpful in determining where interest rates are headed. If the ratio is heading lower (Copper weaker than Gold), often times interest rates will tend to fall. If the ratio is heading higher (Copper stronger than Gold), often times rates will head higher and can suggest the economy is strong and growing.
Below looks at the Doc Copper/Gold ratio over the past 10-years-