It was another tough week for the US dollar. Winners: Mexican peso, +1.11%; South African rand, +0.81%; Norwegian krone, +0.54%; Australian dollar, +0.36%; Chinese yuan, +0.17%; UK pound, +0.12%; Indian rupee, +0.05% Losers: Japanese yen, -1.04%; Euro,-0.27%; Canadian dollar, -0.05% Comex copper, +2.20%; Comex silver, +1.76%; Comex gold, -0.79%…
