The graph below shows the population figures of different types of turtles in India between 1980 and 2012.

The line graph illustrates the changes in the

turtle

population

in India in the

time

period 1980-2012. Specifically, three types of

turtles

are described, namely:

Leatherback

Turtles

(19), Green Back

Turtles

(38), Olive Ridley

Turtles

(20)

as well as

all

species

combined (111). Numbers are reported relative to the 1980

population

size of each group.

Overall

, the

turtle

population

in India remained relatively constant over the

time

period when all

species

are considered. Olive Ridley

turtles

increased the most

while

Leatherback

turtles

showed the biggest decline between 1980 and 2012. From 1980 to 1982, numbers for all

species

showed a slight increase of up to 10%, but

then

levelled off again around the 100% mark with slight fluctuations.

However

, individual

turtle

species

showed considerable variations over

time

. Two

turtle

populations, the

Leatherback

and Green

Turtles

, declined between 1990 and 2012 after remaining relatively stable

initially

.

While

the Green

Turtle

decreased only slightly, finishing at 90% in 2012, the

numbers

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number

show examples

of

Leatherback

Turtles

plummeted to less than 60% of the 1980

population

size over the same

time

period.

In contrast

, the number of Olive Ridley

Turtles

showed an

overall

increase. There was a steady rise up to 1997, after which

this

turtle

population

plateaued

around

Change preposition

at around

show examples

130% with minor fluctuations.