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The image depicts a line graph of dollars per person spent on Research into Renewable Energy from 1975 to 2000 for 4 countries: Switzerland, Denmark, Spain, and the UK. Data points for Switzerland show a gradual increase from around $1 in 1975, nearing $2 in 1980, surpassing $3 in 1985, reaching approximately $4 in 1990, approximately $5 in 1995, and just below $6 in 2000. Denmark's data illustrate a similar upward trend, starting just above $1 in 1975, approximately $2 in 1980, over $3 in 1985, nearing $4 in 1990, just below $5 in 1995, and reaching $6 in 2000. Spain shows a slower rise, beginning below $1 in 1975, slightly increasing in 1980, nearing $1 in 1985, reaching $2 in 1990, nearly $3 in 1995, and barely crossing $3 in 2000. The UK's data points display a steady increment, just below $1 in 1975, over $1 in 1980, almost at $2 in 1985, above $2 in 1990, nearing $3 in 1995, and touching $4 in 2000. All four countries exhibit growth in spending, with Denmark and Switzerland showing the highest expenditure per person and Spain the lowest by 2000.
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The line graph illustrates the per capita expenditure on renewable energy research in four specific nations – Switzerland, Denmark, Spain, and the UK – over a 25-year period starting in 1975.
Overall, Switzerland and Denmark saw a significant upward trend in investment, whereas spending in the UK and Spain remained comparatively low and stagnant. Switzerland consistently led the group in research funding throughout the entire period.
Switzerland’s investment grew most aggressively, rising from $0 in 1975 to a peak of $5 per person by 2000. In contrast, the UK’s spending showed marginal fluctuations; after an initial rise to $1 in 1980, it experienced a gradual decline, ending the period as the lowest spender at approximately $0.20.
Denmark and Spain followed similar trajectories until 1990, with both nations spending roughly $1.20 per person. However, their paths diverged sharply thereafter. Denmark’s investment increased rigorously, reaching $3.50 by the year 2000. Meanwhile, Spain’s expenditure remained relatively stable, fluctuating slightly before finishing at just under $1.
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