condition mean min max 4 h after light 39.127857500000005 35.015524 43.240191 8 h after light 41.713137 35.784864 47.64141 12 h after light 36.83641900000001 34.181966 39.490872 4 h after dark 37.998145 35.015524 40.980766 8 h after dark 32.8302925 31.180665 34.47992 12 h after dark 32.62286 32.62286 32.62286