condition mean min max 3 h after light 1.6640139166666668 0.742497 3.44969 7 h after light 1.87803875 0.47053 3.27311 11 h after light 2.0929155 0.866596 4.40482 2 h after dark 2.09129825 0.951157 4.92641 6 h after dark 1.879181 0.397674 3.39045 10 h after dark 1.9977955 0.768346 4.21113