The graph below shows the spending on research into renewable sources of energy in four countries between 1975 and 2000. Summarise the information by selecting and reporting the main features and make comparisons where relevant.

The graph illustrates information about the average expenditure of individuals on researching renewable energy in four particular countries, over a 25-year period between 1975 and 2000.

Overall

, what stands out from the graph is that there were considerable upward trends in the average personal spending on new energy research in both Switzerland and Denmark,

while

the figures for Spain and the UK only increased slightly. These trends reveal that Switzerland and Denmark seemed to be more willing to protect the environment. Looking at the details, as regards Switzerland, the expenditure started at 0 in 1975,

then

there was a sharp increase during the following five

years

, at which point it started to rise at a steady rate, finishing at just above 5

dollars

in 2000. If we look at Denmark, the trend is a little different. The figure went up significantly in the first 5

years

, approaching 2

dollars

in 1980,

then

there was a fluctuation over the next 15

years

. After which, it increased dramatically to 3

dollars

in 2000. Take a look at Spain, the figure for it reached its peak in 1980

,

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and followed by fluctuation during the following

years

. For the UK, it first increased slightly,

then

dropped significantly, and reached about 1.2

dollars

in 2000.