The given graph shows how many people took part in four various types of sports during the period from 1985 to 2005.
On the one hand, we can notice that the average number of persons playing basketball and badminton from 1985 to 2005 hadn’t changed at all. Talking about basketball, the graph represents that around 75 sportsmen played it then. Nevertheless, the least played sport was obviously badminton with only 50 players.
On the other hand, tennis and rugby faced some insane changes. Back in 1985 rugby was the most popular sport. Unfortunately, that year was a peak of American football, because staring from 1986, rugby’s popularity only kept decreasing. The biggest change was from 2000 to 2005, when rugby lost around 100 players! Tennis’s popularity is the opposite of rugby’s as it only increased during that period. From 1985 to 1995 the increase was very fast, but from 1996 it slowed down a little bit.