condition	mean	min	max
4 h after light	2.7217700000000002	2.16016	3.28338
8 h after light	1.990435	1.76382	2.21705
12 h after light	2.2805999999999997	2.24247	2.31873
4 h after dark	12.276299999999999	12.2154	12.3372
8 h after dark	8.60512	8.29476	8.91548
12 h after dark	6.9186250000000005	6.55813	7.27912