condition mean min max 4 h after light 1.3255949999999999 1.27139 1.3798 8 h after light 1.37893 1.05233 1.70553 12 h after light 2.30586 1.82807 2.78365 4 h after dark 2.07848 1.67202 2.48494 8 h after dark 1.38328 1.04997 1.71659 12 h after dark 1.43071 1.26151 1.59991