condition mean min max 4 h after light 0.0105048 0.0 0.0210096 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0037803 0.0 0.0113409