condition	mean	min	max
4 h after light	8.978208500000001	8.276086	9.680331
8 h after light	8.9531815	8.796994	9.109369
12 h after light	9.200543	9.032203	9.368883
4 h after dark	9.434332	9.065582	9.803082
8 h after dark	9.207922	8.783716	9.632128
12 h after dark	9.138912	9.138912	9.138912