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 0.0664345 0.0 0.132869 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0580535 0.0 0.116107 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0