condition	mean	min	max
4 h after light	1.41193	1.05958	1.76428
8 h after light	3.38681	3.34784	3.42578
12 h after light	3.964435	3.65633	4.27254
4 h after dark	3.6592700000000002	3.54398	3.77456
8 h after dark	2.21488	1.95466	2.4751
12 h after dark	1.87558	1.78297	1.96819