condition mean min max 0 h after light 6.799755 4.83569 8.76382 2 h after light 13.9693 12.0287 15.9099 4 h after light 6.6007 5.90378 7.29762 8 h after light 4.129375 1.56459 6.69416 12 h after light 4.137745 2.83773 5.43776 2 h after dark 2.8798 1.64719 4.11241 4 h after dark 6.131584999999999 4.47941 7.78376 8 h after dark 8.08528 7.82069 8.34987 12 h after dark 9.647974999999999 8.68635 10.6096