The labeling on those axes is horrific. A human is apparently about 7 units of "Large" on the "Size" axis, and can piss around 110 units of "Jet" on the "Shape" axis.
What is 7 units of Large Size you wonder? Fuck you. What is 110 units of Jet Shape you ask? Hell if we know. You sure aren't going to.
What are all the unlabeled dots? Who cares. Sample size? "I saw one do it."