condition	mean	min	max
4 h after light	9.602866666666667	9.42577	9.72115
8 h after light	9.569883333333333	9.34389	9.74233
12 h after light	9.21914	8.98162	9.473469999999999
4 h after dark	8.5978	8.12846	8.873389999999999
8 h after dark	8.265906666666666	7.7941	8.55609
12 h after dark	8.10572	7.9543	8.24295