The graph depicts the population fluctuations of different types of turtles in India over the time period from 1980 to 2012.
Overall, the population of all turtle species experienced a peak around 1990, followed by a gradual decline until 2012. Among the specific types of turtles, the Olive Ridley turtles exhibited the highest population figures throughout the period, while Leatherback turtles showed the lowest numbers.
Between 1980 and 2012, the population of Olive Ridley turtles remained relatively stable, ranging from 20 in 1980 to the peak of 110 in 2012. Despite minor fluctuations, this species consistently maintained higher numbers compared to the other types of turtles.
In contrast, Leatherback turtles had the lowest population figures among the species throughout the period. Starting at 19 in 1980, the population gradually increased to 60 by 1990 but then declined consistently to reach 20 by the end of 2012, showcasing a significant decrease over these years.