The three pie charts compare information about the alternation of yearly expenditure by regional authorities in Someland between 1980 and 2000.
Overall, the spending ratio in higher education, transportation and environmental service had increased,while k-12 education, health and human reserved and other categories witnessed a downward trend in the meantime.However every year higher education reserved the largest proportion of expenditure
In 1980, 35% of the total expenditure accounted in higher education and this figure increased by 10% in the next 10 years, but dropped slightly to 40% in 2000. Likewise, transportation began at 15% in 1980 and reached 22%, after having a fall to 6% in 1990. Environmental services similarly showed upward trend from 4% to 9% between 1980 and 2000.
In terms of K-12 education, the spending ratio was a quarter in the starting period, yet it declined minimally by 5% and continued and dropped to 18% in 2000. After facing a dramatic growth from 14% to 20%, health and human resources fell to 10% in the end. In contrast, other service sectors was 6% in the beginning and it hit the least point of the chart at 4% after 20 years.