The line graph provided depicts the number of visitors to four museums in various countries, namely the Louvre, London Science Museum, Vatican Museums and Shenzhen Museum over a 35-year period from 1980 to 2015.
Overall, it is apparent that the Louvre and Vatican Museums experienced steady upward trends in visitor numbers, while the London Science Museum witnessed a downward trend over the same period. Moreover, Shenzhen Museum recorded almost constant visitor numbers.
One notable feature is the significant increase in visitor numbers to two renowned museums, the Louvre Museum and Vatican Museum, which saw a rise from just under 8 million and approximately 5 million in 1980 to around 9.3 million and 9 million respectively in 2015.
In contrast, there was a decline in the number of visitors to the Science Museum in London when compared with the other two. The quantity of travellers remained stable between 1980 and 1985 at 4 million, but experienced a significant decrease by 1.8 million individuals over the next three decades. In the meantime, the number of visitors to Shenzhen Museum stood at well under 4 million in 1980, then dropped to approximately 3 million in 2000, before rising once more to around 4 million individuals in 2015.