condition	mean	min	max
4 h after light	2.297605	2.16517	2.43004
8 h after light	1.34585	1.26567	1.42603
12 h after light	1.085065	1.04147	1.12866
4 h after dark	0.811037	0.664819	0.957255
8 h after dark	1.48033	1.12844	1.83222
12 h after dark	1.40649	1.22733	1.58565