condition	mean	min	max
4 h after light	2.62157	2.38031	2.86283
8 h after light	2.777615	2.63986	2.91537
12 h after light	3.6368	3.56059	3.71301
4 h after dark	4.448055	4.13006	4.76605
8 h after dark	3.59553	3.47716	3.7139
12 h after dark	3.433085	3.37014	3.49603