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

The provided graph presents data on the expenses spent on research into renewable energy in the UK, Spain, Denmark and Switzerland from 1975 to 2000.

Overall

, Denmark had the highest surge over these 25 years and resulted in being the first among all countries but

in contrast

, the UK's spending was only less than 30 cents per person by the end.

Additionally

, there are 2 countries who were fluctuating during

this

period,

such

as Spain and the UK.

Although

they have witnessed some rise, it was not steady and resulted in the total rate of less than $1 per person in each country.

However

, Denmark's value has actually grown since the beginning of its investments because from 1975 to 1980, the mean value was about $0.5 per individual,

then

it was stable until 1990, and

finally

in the

last

10 years, it had a significant growth to something between 3 and 4 dollars per person.