condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.020589 0.0 0.041178 4 h after light 0.0179762 0.0 0.0359524 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0