condition mean min max 4 h after light 2953.0249999999996 2759.22 3146.83 8 h after light 2719.96 2644.05 2795.87 12 h after light 2769.3450000000003 2662.78 2875.91 4 h after dark 3040.6266666666666 2995.43 3129.75 8 h after dark 3105.1133333333332 3014.56 3157.3 12 h after dark 3356.85 3313.82 3439.13