condition	mean	min	max
4 h after light	919.6	919.6	919.6
8 h after light	893.45	801.5	985.4
12 h after light	838.2	834.1	842.3
4 h after dark	773.0	623.7	922.3
8 h after dark	611.4	591.8	631.0
12 h after dark	568.7	551.1	586.3