condition	mean	min	max
4 h after light	6.18386	6.11255	6.2415400000000005
8 h after light	6.6130233333333335	6.32916	6.87927
12 h after light	6.6052	6.38375	6.72243
4 h after dark	6.24224	6.19255	6.30837
8 h after dark	6.1058200000000005	6.012490000000001	6.2072400000000005
12 h after dark	5.79835	5.7466099999999996	5.87919