condition	mean	min	max
4 h after light	4060.7	4060.7	4060.7
8 h after light	4370.35	3250.2	5490.5
12 h after light	3645.2	2846.4	4444.0
4 h after dark	3562.25	3171.4	3953.1
8 h after dark	3764.2	3292.9	4235.5
12 h after dark	4140.8	4117.5	4164.1