condition mean min max 3 h after light 2.6605166666666666 2.35752 3.08678 6 h after light 1.4275833333333334 1.08739 2.07792 9 h after light 0.96155 0.0 1.66037 12 h after light 2.10909275 0.0 5.63824 3 h after dark 1.49002 0.0 3.19867 6 h after dark 1.0916233333333334 0.90963 1.26683 9 h after dark 2.5278733333333334 1.64361 4.20315 12 h after dark 1.2951679999999999 0.629556 1.96078