Charts
In this graph, we can see the number of different types of turtles from 1980 to 2012.
In General, we can see that in 2012 the population difference between all types is very different. Also, two of them are above 100, while the other two are below. At the same time, two of them didn't change much, and the other two changed very much. And all these types were alive all the time.
Olive Ridley turtles, like all other types, in 1980 was 100 turtles, but in five years has grown to almost 130. In second place all species, for 5 years it has grown by 10 turtles. The difference with the initial figure is small. Green turtles are in second place. Their number has been slightly reduced in five years, from 100 to 90. It is followed by leatherback turtles. Their number has dropped sharply, from 100 to 80. Every year the figure fell, though sometimes it increased. On each chart, there are times when the figure increases or falls sharply