condition	mean	min	max
4 h after light	3.21338	2.76079	3.66597
8 h after light	2.59922	2.46705	2.73139
12 h after light	2.410775	2.37026	2.45129
4 h after dark	2.61544	2.38665	2.84423
8 h after dark	2.87298	2.85065	2.89531
12 h after dark	3.073315	3.06299	3.08364