condition	mean	min	max
0 h after light	9.338754999999999	9.00952	9.66799
4 h after light	7.85343	6.42863	9.27823
8 h after light	7.6183	7.34057	7.89603
4 h after dark	16.0464	13.2491	18.8437
8 h after dark	13.28305	12.5049	14.0612
12 h after dark	10.8238	10.6654	10.9822