condition mean min max 4 h after light 5161.5 5161.5 5161.5 8 h after light 4822.45 4735.4 4909.5 12 h after light 3514.6000000000004 3023.8 4005.4 4 h after dark 2918.3 2566.6 3270.0 8 h after dark 2761.0 2754.2 2767.8 12 h after dark 2853.6000000000004 2476.4 3230.8