The line graph shows the percentage of different age groups of cinema visitors in a particular country from 1978 to 2008. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

The line graph provides information about the proportion of cinema visitors in a specific country, ranging from teenagers to adults aged over 50, between 1978 and 2008.

Overall

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, whilst the four categories exhibited fluctuating trends throughout the given period, each experienced both upward and downward movements at different times.

However

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, the extent and frequency of these fluctuations varied among them. As the graph illustrates, the two highest categories started at 90% and 80%, respectively, in 1978.

Thereafter

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, people aged 14–24 declined gradually to around 75% by 1988 and returned to 90% in 1998. Until 2003, the figure stayed constant, followed by a steady drop to slightly above 80%. Young adults experienced a gradual decrease to approximately 60% in 1988,

then

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rose to 70% by 1998. After that, the figure remained unchanged till 2003, later declining slowly by the end of the period.

Conversely

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, the figures for the 35–49 and over-50 groups were lower. Middle-aged people began at 60% and went down moderately to 40% after one decade. The period from 1988 to 1998 showed a rapid increase to roughly 62% and remained stable until 2003,

subsequently

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falling to almost 49% in 2008. The over-50 population dropped to 20% in 1988,

then

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climbed to 40% and stayed unchanged for the following five years, after which it increased to slightly under 50%

at the end

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of the interval.