condition	mean	min	max
4 h after light	3.91408	2.99198	4.83618
8 h after light	3.00153	2.60248	3.40058
12 h after light	2.58116	2.48375	2.67857
4 h after dark	4.091563333333333	3.30833	4.83014
8 h after dark	3.63565	3.4347	3.92035
12 h after dark	3.7084799999999998	3.58902	3.89429