The table on the right shows the Accumulated Cyclone Energy (ACE) for each storm in the season. The total ACE for the 2003 season was 56.6 x 104 kt2, making the 2003 East Pacific season one of the least active since 1980. The ACE is, broadly speaking, a measure of the power of the storm multiplied by the length of time it existed for, so hurricanes that lasted a long time have higher ACEs.
Hurricane Jimena had the highest overall ACE of the season with a total of 9.28 x 104 kt2. Of this total, Jimena's ACE was 3.265 x 104 kt2 in the Eastern Pacific and 6.015 x 104 kt2 in the Central Pacific. This means that whilst Jimena had the highest overall ACE, it only rated 7th highest in the Eastern Pacific, with Hurricane Nora having the highest ACE in that basin.
As Hurricane Jimena was the only storm in 2003 to exist in the Central Pacific as a tropical storm or hurricane, the total ACE for the Central Pacific was 6.015 x 104 kt2. The total ACE in the Eastern Pacific was 50.6 x 104 kt2.
Source of data: Best track data from the National Hurricane Center's Tropical Cyclone Reports.