condition	mean	min	max
0 h after light	6.3394449999999996	5.74244	6.93645
4 h after light	6.2219750000000005	5.08173	7.36222
8 h after light	6.471385	6.08021	6.86256
4 h after dark	6.635865000000001	6.41194	6.85979
8 h after dark	6.55076	6.49945	6.60207
12 h after dark	6.408315	5.55276	7.26387