The pie charts provide information about electricity usage in Eastern Australia in terms of eight different sectors in two separate years, namely; 2007 and 2010. Overall, the percentage of electricity used by manufacturing and aluminum declined, while opposite was true for other metals. Remaining sectors, however, remained unchanged with residential usage of electricity was the highest, whereas agriculture and transport consumed the lowest proportion.
By 2010, slight changes had been occurred in aluminum manufacturing and other metals sectors. In 2007, the proportion of electricity used by aluminum sector accounted for 13%, which then this figure had declined to 11% by 2010, whilst this percentage for manufacturing reduced by 4 %, going down to 9 %. Other metals was the only sector which showed a slight rise, increasing from 12% to 18% over these three years.
As for sectors which remained unchanged, the biggest percentage of electricity was consumed by residential sector, followed by commercial sector, making up 28% and 23% respectively. This proportion for both transport and agriculture was only 1% in both years, while mining sector consumed 9% of electricity simultaneously.