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 0.202782 0.0 0.405564 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0671315 0.0 0.134263 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0