The given charts give the information about the local authorities were changed in annual spending during the period of 1980, 1990 and 2000.
In general, it can be seen that there was an upward trend in the percentage of higher education, environment services, transportation over 20-year period, whereas the opposites were true for the proportion of K-12 education, health and human resources and other. While higher education always held the highest percentage from 1980 to 2000.
The figure of higher education witnessed a significant increase by 10% over the first 10 years. However, in the year 2000 saw a downward trend to 40% in the statistic of higher education. In contrast, transportation experienced a dramatic drop by 10% between 1980 and 1990 after that it went up to 22% in 2000. In terms of the percentage of transportation which saw a important rise during the period from 1980 to 2000.
On the other hand, there was a sharp decline in the proportion of K-12 education and other over 20-year period from 1980. About the percentage of health and human resources witnessed a growth by 6% in over the first 10 year of this period and then decreased slightly to 10% in 2000.