Ladybug incident radiation benefit and responsive facade

Hi, bit of a newbie sorry but am having a few issues with extracting the correct circles out of the radiation benefit/harm ladybug analysis. I need the circles to be larger the higher the KWh/m2 to allow for more sunlight and the circles smaller the lower the KWh/m2, however no matter which way I attempt (including cull lists and sort list) it has been to no avail.

Preferably would like 0 to be of a small-medium radius with -100 KWh/m2 to be no circle whatsoever or miniscule.

Is there any way I can achieve this as currently it appears that the radius comes out the same (eg. 60 or -60).