condition	mean	min	max
4 h after light	459.9	459.9	459.9
8 h after light	534.2	498.0	570.4
12 h after light	638.0	608.2	667.8
4 h after dark	627.55	577.6	677.5
8 h after dark	573.25	448.4	698.1
12 h after dark	471.05	435.0	507.1