condition	mean	min	max
4 h after light	6.18675	6.15013	6.2508
8 h after light	5.871533333333334	5.73533	6.07271
12 h after light	5.975946666666666	5.87021	6.18371
4 h after dark	6.33785	6.17886	6.645910000000001
8 h after dark	6.664193333333333	6.5092	6.84575
12 h after dark	6.789926666666667	6.582560000000001	6.977810000000001