condition mean min max 3 h after light 0.5044483333333334 0.0 1.1555 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.09625833333333333 0.0 0.288775 3 h after dark 0.0 0.0 0.0 6 h after dark 0.10407933333333334 0.0 0.312238 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0