condition mean min max 4 h after light 2798.5 2798.5 2798.5 8 h after light 2728.35 2476.5 2980.2 12 h after light 2832.75 2652.2 3013.3 4 h after dark 3160.05 2896.2 3423.9 8 h after dark 3332.45 3325.0 3339.9 12 h after dark 3255.3 3165.4 3345.2