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 0.019725933333333334 0.0 0.0325266 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.011218966666666665 0.0 0.0336569 9 h after dark 0.0 0.0 0.0 12 h after dark 0.016726 0.0 0.033452