The paragraph compares the amounts of tourists 
between 
staying on Change preposition
apply
cruise
 Use synonyms
ships
 and staying on Use synonyms
island
 in a Caribbean island from 2010 to 2017.
Add an article
an island
the island
Overall
, both the Linking Words
number
 of Use synonyms
visitors
 staying on Use synonyms
cruise
 Use synonyms
ships
 and the amount of Use synonyms
visitors
 experience a gradual increase over the period.
From 2010 and 2012,  the Use synonyms
number
 of Use synonyms
visitors
 staying on Use synonyms
islands
 rose gradually to 0.5 Correct article usage
the islands
million
, before declining to 0.25 Use synonyms
million
 in 2012. Use synonyms
Linking Words
While the
 Correct word choice
The
number
 of Use synonyms
visitors
 staying on Use synonyms
cruise
 Use synonyms
ships
 remained constant at 0.75 Use synonyms
million
 from 2010 to 2012, after dramatically increasing to about 1.3 Use synonyms
million
. 
Between 2012 and 2017, the Use synonyms
number
 of Use synonyms
visitors
 staying on Use synonyms
islands
 kept constantly increasing, peaking at 2 Correct article usage
the islands
million
 in 2017.  After a moderate rise from 2012 to 2013, the Use synonyms
number
 of Use synonyms
visitors
 staying on Use synonyms
cruise
 Use synonyms
ships
 experienced fluctuation at about 1.5 Use synonyms
million
 between 2013 and 2017.Use synonyms