The bar diagram represents the fertility rate in 6 Gulf nations from 1990 to 2000. In the big picture, it is conspicuous that all countries had a downward trend in 10 years, with Oman 
as
 the first position in both years. 
Change preposition
in
Focussing
 on Correct your spelling
Focusing
top
 two countries which had the Correct article usage
the top
significant
 Correct quantifier usage
most significant
number
 of births, in 1990, Oman started from a peak at 7, before falling down to just over 5 in one year after. Use synonyms
Likewise
, the Linking Words
number
 of children born in Saudi Arabia in 2000 was Use synonyms
same
 as Correct article usage
the same
Oman
, after declining from 7 in the first period.
Turning to the remained categories, both Bahrain and Kuwait had the same statistics in both years, 3 in 1990 and  2,5 in 2000. Change preposition
in Oman
In addition
, even though Qatar and Uni Emirat Arab started at the same Linking Words
number
 at 4, Uni Emirat Arab had Use synonyms
more
 dramatic decrease in the Add an article
a more
number
 of kids born than Qatar by 1 point difference.Use synonyms