condition	mean	min	max
4 h after light	6.445955	5.89554	6.99637
8 h after light	6.226445	6.07048	6.38241
12 h after light	7.5979	7.20268	7.99312
4 h after dark	6.547105	6.41963	6.67458
8 h after dark	5.801145	5.69429	5.908
12 h after dark	6.59549	6.49478	6.6962