The line chart illustrates the visitors who have come to four museums from 1980 to 2015. Units are measured in millions of numbers. 
     
Overall
, Linking Words
it is clear that
 Louver was a dominant slash until the end of the period Linking Words
while
 the Vatican saw a high rise. Linking Words
Moreover
, it is Linking Words
also
 worth noting that, the Science Linking Words
Museum
 of London recorded a low outcome over the period. 
     In detail, the total of Louer sightseers represented 8 Use synonyms
million
 at the beginning time, afterwards, there was a slight increase to around 9 Use synonyms
million
. Use synonyms
However
, it climbed to 10 Linking Words
million
 despite, some fluctuations in 2015. For the Vatican Use synonyms
Museum
 was almost 4 Use synonyms
million
 in 1980, Use synonyms
thereafter
, there was a substantial jump to roughly 10 Linking Words
million
 Use synonyms
till
 2015 and reached the same point as Louver.  
      Focusing on, both trends, namely Shenzhen and London scientific Change preposition
by
museum
 witnessed oscillations in a number of comers. Use synonyms
For instance
, the initial point of the London science Linking Words
museum
 was 4 Use synonyms
million
 in 1980 and Use synonyms
then
 there was a  go down to 2 mln until  the end of the period. Linking Words
Last
 but not least, Shenzhen Linking Words
museum
 decreased to approximately 3 mln in 2000 and grew to 4mln in 2015.Use synonyms