condition	mean	min	max
4 h after light	5.89225	5.81191	5.99069
8 h after light	5.75811	5.68939	5.894080000000001
12 h after light	5.9045000000000005	5.62208	6.32455
4 h after dark	5.900453333333333	5.76497	6.17138
8 h after dark	5.843196666666667	5.64034	6.10911
12 h after dark	5.836223333333333	5.7353	5.99989