condition	mean	min	max
4 h after light	1.36762	1.21041	1.52483
8 h after light	0.968308	0.967293	0.969323
12 h after light	1.03388	0.92851	1.13925
4 h after dark	0.888733	0.864459	0.913007
8 h after dark	0.9066715	0.745763	1.06758
12 h after dark	1.4233699999999998	1.36529	1.48145