condition	mean	min	max
4 h after light	3.7566566666666668	3.71275	3.82579
8 h after light	3.759183333333333	3.7488599999999996	3.77181
12 h after light	3.7797133333333335	3.7295800000000003	3.86674
4 h after dark	3.7940566666666666	3.7003699999999995	3.8716800000000005
8 h after dark	3.77922	3.73863	3.81457
12 h after dark	3.74926	3.67436	3.8673