condition	mean	min	max
4 h after light	4.55038	4.51058	4.58915
8 h after light	4.40474	4.27955	4.54396
12 h after light	4.393016666666667	4.3558	4.43601
4 h after dark	4.539733333333333	4.514480000000001	4.57849
8 h after dark	4.55333	4.52975	4.59823
12 h after dark	4.47724	4.37688	4.67227