condition	mean	min	max
4 h after light	4.08613	3.9619199999999997	4.23094
8 h after light	4.0779266666666665	3.94446	4.27621
12 h after light	4.03838	3.9604800000000004	4.16327
4 h after dark	4.141483333333333	4.00535	4.24717
8 h after dark	4.1194766666666665	4.04924	4.22691
12 h after dark	4.07592	4.01658	4.14919