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$\hspace{1cm}$The line graph shows the trend in the number of participants of five different leisure activities at a social centre in Melbourne over 20 years, starting from 2000.

$\hspace{1cm}$It can be clearly seen from the graph that from 2000 to 2020, while the number of table tennis players and musical performers at the social centre quickly increased, the number of people who did amateur dramatics experienced a downward trend, and the number of people who participated in the social centre's film club and people who did martial arts saw minor fluctuations. 

$\hspace{1cm}$In 2000, there were 16 people who played table tennis at the social centre. That number increased to 20 people in 2005 and then levelled off until 2010, before substantially rising to about 54 people in 2020. Meanwhile, no one gave musical performances at the centre from 2000 to 2005, but in 2010, the number suddenly went up to 12 people and then gradually increased to 17 people in 2020.

$\hspace{1cm}$The number of people who did amateur dramatics stood at 26 people in 2000. It then peaked at 28 people in 2005, before steadily going down and reaching 6 people in 2020. The film club in 2000 consisted of 64 members, but the number decreased over a 10-year period and reached its low at 60 members, before going back to 66 members in 2020. The number of participants of martial arts kept increasing and decreasing repeatedly, fluctuating between its low of 32 people and its peak of 38 people before standing at 36 people in 2020.