condition	mean	min	max
4 h after light	10.138	9.9917	10.2843
8 h after light	6.60586	6.53977	6.67195
12 h after light	6.824205	6.08065	7.56776
4 h after dark	9.35006	7.27339	12.2895
8 h after dark	18.71	15.9721	22.2346
12 h after dark	14.605033333333333	13.9304	15.4532