condition	mean	min	max
4 h after light	4.00085	3.96024	4.031000000000001
8 h after light	3.99582	3.9719	4.02146
12 h after light	4.046203333333333	3.99185	4.11949
4 h after dark	4.178286666666667	4.1413400000000005	4.24981
8 h after dark	4.081366666666666	3.9724	4.206259999999999
12 h after dark	3.99106	3.95718	4.054469999999999