⇣ copsgd ⇣cop100sgd00004cop500sgd00018cop1000sgd00035cop2000sgd00070cop5000sgd00176cop10000sgd00352⇣ copsgd ⇣cop1,00000sgd03520cop5,00000sgd176cop10,00000sgd352cop25,00000sgd880cop50,00000sgd1760cop100,00000sgd3520