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 line chart illustrates the spending value (per person) of research on renewable energy in four nations from 1975 to 2000.

Overall

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, the trend showed two different patterns

with

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, with

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Switzerland and Denmark accounting for an upward trend,

whereas

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Spain

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and the

UK

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were characterised by a minor decrease over time. At the beginning, all the countries started with zero dollar spending in 1975.

However

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, the amount spent on the Switzerland research had a significant rise to $2 in 1980.

This

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figure increased gradually over the years and reached a peak point at $5 by 2000.

Similarly

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, the share of Switzerland researchers had a moderate advance at around $1.25 in 1980 and remained the same until 1990 before soaring to approximately $3.5

at the end

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of the period.

In contrast

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,

Spain

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and the

UK

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rose to over $1 in 1980,

while

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Spain

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had a marginal slip to 1% in 1985, the spending on

UK

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research decreased moderately to roughly $0.5

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also

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billion also

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in the same year.

Moreover

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, the spending value for

Spain

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dipped to under $0.5 in 1990 before recovering to nearly $1 in 1995,

then

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it dropped back to around $0.7 by 2000. Meanwhile, the spending value on the

UK

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expanded to almost $1 in 1990, after which it fell gradually to below $0.5 in 2000.