the data on the United Kingdom university’s expenditure during the time period from 1981 to 2001. 

Given are three pie charts regarding the data on the United Kingdom university’s expenditure during the time period from 1981 to 2001. It is evident from the information supplied that the percentage of teachers’ annual spending was the highest in three years, at 40% in 1981, and just a bit higher, at 55% in 1991 and a slightly lower 45% in 2001 respectively. As for the proportion of resources which was increased from approximately 10% in 1981 to 12% in 1991 before declined to 5% in 2001. Also apparent from the annual expenditure is the fact that the rate of other staff’s salary decreased from somewhere in the vicinity of 33% in 1981 to 23% in 1991, then continued decreasing to 18% in 2001 respectively. In stark contrast, however, the balance of insurance was rose throughout three years, accounted for 2% and 3% in the two first year, and at 8% a decade later respectively. However, the most significant change, the last was decreased from approximately 15% in 1981 to 17% in 1991, then soared to 24% in 2001, was the second highest overall.