condition	mean	min	max
4 h after light	4.514596666666667	4.4975	4.53253
8 h after light	4.52812	4.48396	4.5833
12 h after light	4.552073333333333	4.47731	4.68192
4 h after dark	4.598206666666667	4.46382	4.804469999999999
8 h after dark	4.50951	4.4508	4.539969999999999
12 h after dark	4.53352	4.46704	4.56962