condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0272843 0.0 0.0545686 4 h after light 0.0 0.0 0.0 8 h after light 0.02812745 0.0 0.0562549 12 h after light 0.0 0.0 0.0 2 h after dark 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 0.0 0.0 0.0