condition	mean	min	max
4 h after light	4263.7	4263.7	4263.7
8 h after light	4337.55	3997.8	4677.3
12 h after light	4206.25	4160.0	4252.5
4 h after dark	4646.45	4313.7	4979.2
8 h after dark	4699.55	3980.4	5418.7
12 h after dark	4364.1	4326.9	4401.3