condition	mean	min	max
4 h after light	8.821563999999999	8.327238	9.31589
8 h after light	9.070419	8.835102	9.305736
12 h after light	7.9538795	7.367533	8.540226
4 h after dark	9.147136	9.138912	9.15536
8 h after dark	9.826677	9.1752	10.478154
12 h after dark	9.166732	9.166732	9.166732