Ladybug Solar Radiation Result analysis

Hii Everyone, Im trying to study solar radiation falling on different iterations of a design. I started with a simple box model and got the result.

I have extracted the results on to an excel and saw that there are 75000 values. But my total area on facade is just 1800 sq. m and grid size is ) 0.3 m. Hence there is noway it can be divided into 75000 grids. How does Ladybug get 75000 values then? I want to know what percentage of my facade receives a certain range of radiation.

Please help. Thanks

The component outputs test points. Connect the output to a custom preview component and you will be able to see them.