condition	mean	min	max
4 h after light	6.80169	5.88012	7.72326
8 h after light	6.172015	5.85052	6.49351
12 h after light	6.409555	5.80171	7.0174
4 h after dark	8.333475	8.05478	8.61217
8 h after dark	7.063605	7.01141	7.1158
12 h after dark	7.44981	7.04694	7.85268