condition mean min max 4 h after light 3633.5 3633.5 3633.5 8 h after light 3367.15 2966.4 3767.9 12 h after light 3103.7 2890.8 3316.6 4 h after dark 3439.25 3046.9 3831.6 8 h after dark 3193.3999999999996 2975.2 3411.6 12 h after dark 3488.25 3161.5 3815.0