condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.05735283333333333 0.0 0.0934612 4 h after dark 0.045938 0.0 0.137814 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0