The diagram displays the number of viewers of 4 different institutions around the world from 1980 to 2015.
Overall, there are two international gallery which shows an upward trends in terms of the number of visitors. They were Louvre and Vatican Museums respectively, louvre ended up to have the highest tourists amount. In general , Shenzhen and London Science Museum illustrates a downward trend and london Science Museum recieved the least viewers.
To be specific, Louvre had around 8 millions art lovers in 1980 then gradualy rised up to approxinetely 9 millions in 15 years. Later on, louvre did have a declined in museum-goers and the figures dropped about half a million in a 5 years period but in the end, the visitors of Louvre remaind at the top and reach the highest point in 2015 with almost 10 millions of a quests. Vatican Museums, on the other hand, also had an upward trend but it was not as popular as Louvre. Statistically, Vatican Museums had a constantly increasing slope from 5 millions in 1985 to 9 millions in 2015.
However, London Science and Shenzhen Museum illustrate a decreasing trend. In the first 20 years, the number of tourists of the gallery in Shenzhen shows a constant reduction from 3.9 to 3 millions, but this trend turns to increase in 2000, which shows a slight increase from 3 to 3.9 millions of art lovers. The number of viewers of London Science Museum first drops from 4 to 3 millions of guests in 1985, then a constant decrease is represented in the next 30 years, which drops from 3 to 2 millions of visitors.