The given line graph illustrates the information about changes in the amount of people who visited to four different museums worldwide from 1980 to 2015.
Overall, unlike the number of visitors in Louvre and Vatican Museum held the dominance over the period, that of visitors in other London Sciense Museum and Shenzhen Museum ended up demonstrating low figures.
Regarding Louvre and Vatican Museum proportion of peole who visited stood at approximately 8 and 5 million respectively before increasing dramaticly until 2015. Despite their trajectories were simillar former faced with bigger fluctuation between 1990 and 2000 compared to later.
As for London Sciense Museum and Shenzhen Museum, former showed dramatic down fall to 2 million visitor until 2015 before remaining constant at about 4 million visitor between 1980 and 1985. However later went down steadily from under 4 million to about 3 million from 1980 to 2000 just before gradual rise in last last 15 years of the periond to under 4 million visitors again.