condition	mean	min	max
4 h after light	18.3065745	17.478379	19.13477
8 h after light	18.5490725	18.323651	18.774494
12 h after light	17.2562945	16.787626	17.724963
4 h after dark	16.275758	15.634038	16.917478
8 h after dark	16.4988625	15.936323	17.061402
12 h after dark	15.841794	15.841794	15.841794