condition	mean	min	max
4 h after light	9.057043333333333	8.784510000000001	9.20478
8 h after light	8.948156666666668	8.914810000000001	8.9761
12 h after light	9.059033333333334	8.87792	9.18474
4 h after dark	9.48089	9.2757	9.7583
8 h after dark	9.70014	9.579989999999999	9.8581
12 h after dark	9.844436666666667	9.78151	9.93679