condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.435899 0.0 0.871798 4 h after dark 0.3884485 0.0 0.776897 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0