Answer:
The line illustrates the proportion of tourists visiting various attractions in the capital of Scotland Edinburgh between 1980 and 2010.
It is clear that the most popular attraction among tourists was zoo in 2010. The number fluctuated from 10% to 20% during 30 years. While the proportion of tourists visited festivals decreased slightly from 30% and went on down gradually. From 2000 to 2010 the number of visitors of festivals remained stable.
The least visited attractions were castle and aquarium in the last 10 years. The number of tourists who visited castles dropped significantly from the highest percentage over 40% in 1995 to 30% in 2010.We can see the same tendency with the number of tourists visited aquariums. There was a sharp increase in tourists from 20% to over 40% between 1980 and 1985. Then it dropped rapidly; however, there was a slight rise in 1990 for about five years. After that the percentage of tourists visited Edinburgh aquarium continued to decrease gradually and reached the minimum for under 10% in 2010.