condition	mean	min	max
4 h after light	1220.4	1220.4	1220.4
8 h after light	1088.2	590.7	1585.7
12 h after light	553.25	341.0	765.5
4 h after dark	507.5	465.9	549.1
8 h after dark	791.3	783.1	799.5
12 h after dark	1191.65	902.2	1481.1