Exports: How can a small amount of export make really high income I'm currently researching for a school project about Thailand.

I found the wonderful Observatory of Economic Complexity Website.

There are two visualizations I don't quite understand: 
https://atlas.media.mit.edu/en/visualize/tree_map/hs92/export/tha/all/show/2015/ 
https://atlas.media.mit.edu/en/visualize/stacked/hs92/export/tha/all/show/1995.2016/ 

How can it be that Animal products (light yellow) are only 1.3% of total exports but make the most money.

Maybe I didn't understand the Stacked Visualization right. So maybe that's my mistake. 

EDIT: OK; I just found out that I misread the chart. I was a little bit confused obviously. These stacked line charts are completely unlogical to me
What you're asking1 stems from a more general question


  "How can such a small amount of some export $Q$ make the most money out of all the exports?"


To that the answer is to simply recall the standard formula for Total Revenue. 

i.e.

$$TR=P \times Q$$

Even though the quantity of export $Q$ is small it could be that the price for $Q$ (be that for whatever reason) be the cause for why it makes more revenue relative to the countries other exports. 

Hope this is helpful!  



1 I could be wrong