condition mean min max 2 h after light 5.145396666666667 1.7163 13.4639 6 h after light 5.728795 3.10984 14.3691 10 h after light 12.988368333333334 5.38917 36.9197 14 h after light 13.097646666666668 3.49873 38.5814 18 h after light 6.5126355 0.188023 23.0537 2 h after dark 5.39944 1.06781 15.5629