condition	mean	min	max
4 h after light	541.5	541.5	541.5
8 h after light	699.55	682.9	716.2
12 h after light	729.55	611.2	847.9
4 h after dark	870.25	802.2	938.3
8 h after dark	675.05	607.9	742.2
12 h after dark	599.6	530.2	669.0