The graph depicts the number of dwellers who participated in badminton, basketball, tennis and rugby in a specific region over a twenty-year period from 1985 to 2005.
Overall, whereas the data of citizens joining in badminton and basketball remained the same, that of tennis and rugby varied considerably over the measured period.
Looking at the graph more closely, one can see that badminton leveled off at around 50 people, with this category remaining the least popular among the four. Furthermore, although basketball witnessed fluctuations in the number of participants, its figure stayed at about 80 residents from 1985 to 2005.
To the contrary, tennis and rugby experienced much more remarkable change. With regards to tennis, this sport originally had approximately 150 participants, before surpassing rugby in 1995 and reaching its peak at nearly 220 players in 2005. However, there was a dramatic decline in rugby’s figure, from nearly 250 to about 50 people, in 1985 and 2005, respectively.