condition mean min max 0 h after light 5.63922 5.10713 6.17131 4 h after light 4.50416 4.49729 4.51103 8 h after light 1.8889049999999998 1.59276 2.18505 4 h after dark 2.64121 2.23994 3.04248 8 h after dark 3.849025 3.56751 4.13054 12 h after dark 4.96729 4.82323 5.11135