condition mean min max 2 h after light 2.63694 2.23242 2.9008 6 h after light 1.9113033333333334 1.84275 2.02297 10 h after light 1.83259 1.79614 1.89258 2 h after dark 2.2747166666666665 2.2238 2.34792 6 h after dark 1.82663 1.47443 2.39439 10 h after dark 1.68956 1.67377 1.71656