The line graph presented illustrates the trends in electricity consumption across four distinct sectors, labeled A, B, C, and D, from 2005 to 2020, quantified in terawatt hours (TWh).
Overall, sectors A and D experienced significant upward trajectories in electricity usage, while sector B displayed a noticeable decline, culminating at 30 TWh in 2020. Sector C exhibited a more erratic pattern throughout the examined period.
In detail, sector A commenced at 30 TWh in 2005 and demonstrated a consistent increase, culminating in a total of 52 TWh by 2020. This represents a steady growth trajectory, highlighting an increase of 22 TWh over the 15-year period. Sector D, initially at a modest 10 TWh, showed marked improvement, advancing to 32 TWh by the end of the examined timeframe; this constitutes a growth of 22 TWh as well, illustrating a robust upward trend.
Conversely, sector B started off at 60 TWh in 2005 but experienced a significant decline, culminating in a low of 30 TWh in 2020, making it the least consuming sector by the end of the period. This decline reflects a decrease of 30 TWh. Sector C displayed an irregular pattern; beginning with 20 TWh in 2005, it fluctuated between 20 and 30 TWh before returning to 20 TWh in 2020, thus illustrating no net change in consumption over the period despite its cyclical behavior.