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 0.972485 0.0 1.94497 12 h after light 1.43865 0.0 2.8773 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 1.02529 0.0 2.05058 12 h after dark 0.0 0.0 0.0