condition	mean	min	max
4 h after light	638.5	638.5	638.5
8 h after light	638.45	611.1	665.8
12 h after light	605.4	589.9	620.9
4 h after dark	633.8	600.0	667.6
8 h after dark	747.25	676.6	817.9
12 h after dark	692.0	672.5	711.5