condition mean min max 4 h after light 6306.6 6306.6 6306.6 8 h after light 5870.200000000001 5018.6 6721.8 12 h after light 3747.65 2702.0 4793.3 4 h after dark 2982.75 2935.6 3029.9 8 h after dark 4870.7 3256.2 6485.2 12 h after dark 8498.95 7577.8 9420.1