condition	mean	min	max
0 h after light	7.775065	7.4508	8.09933
4 h after light	11.51735	11.4685	11.5662
8 h after light	12.46595	10.9733	13.9586
4 h after dark	16.2242	16.1922	16.2562
8 h after dark	15.99565	15.1446	16.8467
12 h after dark	10.476025	9.18225	11.7698