The graph illustrates the 
millions
 of tourists visiting a certain Caribbean Island Use synonyms
for
 2010 to 2017.  Change preposition
from
Overall
, what stands out from the graph is that there were considerable upward trends in the visitors of both Linking Words
on 
cruise ships and Change preposition
apply
Island
. 
 
Looking at the details, as regards Fix the agreement mistake
islands
on 
cruise ships. The travelers started at 0.2 Change preposition
apply
Use synonyms
millions
 in 2010, Change to singular
million
then
 there was a dramatic increase at approximately 1.5 Linking Words
Use synonyms
millions
 before dropping at 1 Change to singular
million
Use synonyms
millions
, , finishing at 2 Change to a singular noun
million
Use synonyms
millions
. If we look at the number of tourists on Change to singular
million
Island
, the trend was reversed. Correct article usage
the Island
Although
 the graph began at 0.7 million, and Linking Words
then
 fluctuation over the next five years, at which point it Linking Words
leveled
 off at just under 1.6 until 2015, finishing as same Change the spelling
levelled
as
 around 1.5 Change preposition
at
Use synonyms
millions
. 
Change to singular
million
By contrast
, the total of Linking Words
travelers
 went in the opposite direction. The figure shows a rapid increase in all over the period, with Change the spelling
travellers
1millions
 to 3.5 Correct your spelling
1 million
Use synonyms
millions
.Change to singular
million