condition	mean	min	max
4 h after light	586.5	586.5	586.5
8 h after light	582.85	572.1	593.6
12 h after light	644.4	549.3	739.5
4 h after dark	618.15	475.8	760.5
8 h after dark	542.8	410.8	674.8
12 h after dark	443.2	390.7	495.7