condition	mean	min	max
4 h after light	5.63104	5.576969999999999	5.69337
8 h after light	5.575386666666667	5.3905	5.75194
12 h after light	5.41315	5.30928	5.5212
4 h after dark	5.5767066666666665	5.4897599999999995	5.67286
8 h after dark	5.51061	5.36883	5.66299
12 h after dark	5.4944	5.43647	5.56002