condition	mean	min	max
4 h after light	7.597277500000001	7.522668	7.671887
8 h after light	7.406617	7.141347	7.671887
12 h after light	7.768791	7.319163	8.218419
4 h after dark	7.998875	7.671887	8.325863
8 h after dark	8.1849885	7.486061	8.883916
12 h after dark	7.671887	7.671887	7.671887