condition	mean	min	max
4 h after light	8.554300000000001	8.175347	8.933253
8 h after light	8.372629	8.175347	8.569911
12 h after light	8.175347	8.175347	8.175347
4 h after dark	7.959678	7.893705	8.025651
8 h after dark	7.8482579999999995	7.460375	8.236141
12 h after dark	8.525613	8.525613	8.525613