⇣ copbnd ⇣cop100bnd00003cop500bnd00017cop1000bnd00034cop2000bnd00069cop5000bnd00171cop10000bnd00343⇣ copbnd ⇣cop1,00000bnd03425cop5,00000bnd171cop10,00000bnd343cop25,00000bnd856cop50,00000bnd1713cop100,00000bnd3425