condition	mean	min	max
4 h after light	648.6	648.6	648.6
8 h after light	745.55	743.9	747.2
12 h after light	662.1	614.1	710.1
4 h after dark	601.05	568.6	633.5
8 h after dark	728.75	711.3	746.2
12 h after dark	651.05	633.0	669.1