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for over 4 million, almost double that of women in 2000. However, these
trends had opposite directions in the next five years. Female travelers’
figure had a sharp rise to a peak of just above 4 million while it plunged
to half that of male tourists. In the following decade, men’s trend
gradually went up and recovered, unlike women’s trend, which had a
significant fall before rising to just under 3 million in 2015.
(As the line graph shows frequent fluctuations, there are various contrasting
structures. Some data has made the description clear, and various time
expressions and a switch between noun/verb phrases have helped avoid
repetition in style. Note that the paragraph is only focused on the line graph
and does not mention anything about the pie chart; this is to avoid confusion.)