The image shows a line graph with the data of the total population for four different types of turtles in India, such as Leatherback Turtles, Green Turtles, All species, and Olive Ridley Turtles from the year 1980-2012.
Overall, the biggest population over the period given was Olive Ridley Turtles, starting from 100 units in 1980 and significantly increasing up to 130 units in 1996. Whereas, the population of Olive Ridley Turtles steadily increased after the period of 1996-2012, reaching around 125 units in 2012.
Leatherback Turtles increased from 1982-1988 with a total of 110 units. However, it started to decrease gradually from the year 1988 until it reached 60 units in 2002, remaining the same amount in 2012.
Green Turtles experienced gradual fluctuations within the given period, reaching a low of only around 90 units in 2012. Meanwhile, the population of All species did not show significant changes over the given period. It indicates that All species consistently increased and decreased between the years 1980-2012, with 111 units.