condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.413466 0.0 0.846755 9 h after light 0.13979666666666665 0.0 0.41939 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0