condition	mean	min	max
4 h after light	5.422370000000001	5.00053	5.84421
8 h after light	7.89501	7.84015	7.94987
12 h after light	8.255265	8.08762	8.42291
4 h after dark	11.18125	10.4038	11.9587
8 h after dark	8.582899999999999	8.32391	8.84189
12 h after dark	7.99535	7.80487	8.18583