The linear graph illustrates the quantities of visitors to four overseas museums during 35 years from 1980 to 2015.
Overall, the number of people visited three of four galleries increased over the period, while London Science Museum, it decreased.
With regards to the number of tourists visited Louvre, it began at less than 8 million people in 1980 and then rose to less than 9 million in 1990 and uplifted slightly again in 1995 before falling steadily in 2000; furthermore, it started increasing to less than 10 million in the last year. In contrast, the quantity of visitors of Vatican Museums stood at over 5 million and rose gradually to near 9 million tourists in 2015.
On the other hand, London Science Museum stood at 4 million visitors. Meanwhile, Shenzhen Museum began with fewer visitors than London Science Museum. It is worth noting that the numbers of tourists at the London Science and the Shenzhen Museum remained almost constant at 3 million with little decline from 1990 to 2000. However, foreign people began to visit Shenzhen Museum than the London Science Museum and rose the number to 4 million in the last year, while the quantity of visitors to the London Science Museum downlifted to 2 million in 2015.