The provided pie charts depict the transformation of annual expenditures of local governments in Someland during the years 1980, 1990, and 2000. Upon initial observation, it is evident that higher education was the primary field attracted the most substantial proportion while environmental services and others industry showed the least in the spending percentages.
Regarding the group of three largest domains including higher education, K-12 education and transportation, it becomes conspicuous that Higher education sector displayed fluctuation under a downward trend, starting at 35% in the year 1980, rising significantly by 10% after ten years, then declining at 40% in 2000. K-12 education came to the fore a downward trajectory, with a moderate portion of 25% and 20% in the year 1980 and 1990, consecutively, making it the second biggest spending domain. However, the percentage then continuously declined by 2% in 2000, making it stood at the third position of annual spending. Converse with higher education’s trend, transportation industry presented oscillation under an upward tendency, commencing with modest percent of 16% in 1980, disappointedly descended to 6% in 1990, then significantly jumped at impressive portion of 22% after 10 years.
Moving on to the other sectors encompassing health/human resources, environmental services and unlisted sector, it is crystal clear that health and human resources accounted for 20% in the year 1990, which was 6% and 10% less compared to its portions during the years 1980 and 2000, respectively. Looking at the proportion of environmental services, an upward trend was emerged throughout the period of 20 years, embarking on a mere portion of 4%, growing slightly by 1%, then reaching its peak at 9% in 2000. Conversely, unlisted domain displayed a continuous descendant, occupying 6% in 1980, then making up for mere portions of 4% and 1%, consecutively