condition	mean	min	max
4 h after light	3.96353	3.55189	4.37517
8 h after light	3.39599	3.29906	3.49292
12 h after light	3.20678	3.13569	3.27787
4 h after dark	3.29357	3.20453	3.39171
8 h after dark	3.8194	3.31515	4.30562
12 h after dark	3.13296	2.29965	3.58067