condition	mean	min	max
0 h after light	6.298425	5.96443	6.63242
4 h after light	4.664335	3.21895	6.10972
8 h after light	6.587815	4.20532	8.97031
4 h after dark	16.74615	14.5115	18.9808
8 h after dark	11.2502	11.1794	11.321
12 h after dark	6.917210000000001	4.97506	8.85936