condition	mean	min	max
4 h after light	6.22307	5.89216	6.526669999999999
8 h after light	6.2968166666666665	5.68091	6.7751
12 h after light	6.97261	6.39308	7.332000000000001
4 h after dark	6.640986666666667	6.20057	6.9360100000000005
8 h after dark	6.3799866666666665	6.05843	6.69727
12 h after dark	6.122086666666667	5.7922400000000005	6.43427