condition	mean	min	max
4 h after light	668.2	668.2	668.2
8 h after light	616.8	561.4	672.2
12 h after light	639.0	612.5	665.5
4 h after dark	522.1	433.5	610.7
8 h after dark	544.2	441.2	647.2
12 h after dark	505.0	481.8	528.2