condition	mean	min	max
4 h after light	18.079923	16.803568	19.356278
8 h after light	20.991909	19.049001	22.934817
12 h after light	23.370992	15.839597	30.902387
4 h after dark	34.04124	23.647648	44.434832
8 h after dark	38.589259	31.505783	45.672735
12 h after dark	13.527677	13.527677	13.527677