The increased macroeconomic stability fostered a return to better economic performance, with growth reaching 6% by 2004. Eyzaguirre's six-year term makes him the longest-serving Minister of Finance in the history of Chile. Under his tenure the state owned mining company, Codelco, closed copper forward trades with the chinese government. Those transactions generated losses of almost usd 5.0 bn for the chilean government. The internal revenue service of Chile (SII) questioned de operations because copper was sold at an average of usd1,16 per pound, while in the London Exchange was trading at usd 3,87.