condition	mean	min	max
4 h after light	3.963163333333333	3.86055	4.05976
8 h after light	3.9536000000000002	3.88466	4.03636
12 h after light	3.9354766666666667	3.7815800000000004	4.1306
4 h after dark	3.9132033333333336	3.8716800000000005	3.97455
8 h after dark	3.84178	3.7963699999999996	3.87649
12 h after dark	3.838023333333333	3.8061199999999995	3.8691400000000002