condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.16323766666666667 0.0 0.489713 12 h after light 0.10120425 0.0 0.207444 3 h after dark 0.0 0.0 0.0 6 h after dark 0.121284 0.0 0.363852 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0