condition	mean	min	max
0 h after light	6.830405	6.57533	7.08548
4 h after light	8.053094999999999	7.62697	8.47922
8 h after light	8.63691	8.11308	9.16074
4 h after dark	10.439415	9.84213	11.0367
8 h after dark	9.014205	8.6576	9.37081
12 h after dark	8.363164999999999	8.31055	8.41578