condition	mean	min	max
0 h after light	6.386374999999999	6.35483	6.41792
4 h after light	6.456935	5.80706	7.10681
8 h after light	6.873175	6.59382	7.15253
4 h after dark	8.41412	8.30361	8.52463
8 h after dark	7.6906099999999995	7.58169	7.79953
12 h after dark	7.02138	6.56136	7.4814