condition	mean	min	max
4 h after light	2.58758	2.04796	3.1272
8 h after light	3.74168	3.54712	3.93624
12 h after light	3.540145	3.11947	3.96082
4 h after dark	7.78925	7.57274	8.00576
8 h after dark	5.13557	3.87637	6.39477
12 h after dark	4.492865	4.4489	4.53683