condition	mean	min	max
4 h after light	7.147690000000001	5.78169	8.51369
8 h after light	3.4911149999999997	3.05217	3.93006
12 h after light	2.1382000000000003	2.11512	2.16128
4 h after dark	3.5622133333333332	3.20578	3.81269
8 h after dark	6.67364	6.59955	6.78644
12 h after dark	5.62953	5.1488	6.24995