condition	mean	min	max
4 h after light	7.605323333333334	7.512560000000001	7.6860100000000005
8 h after light	7.769173333333334	7.69172	7.86373
12 h after light	8.03962	7.96965	8.12191
4 h after dark	7.813386666666667	7.64615	7.9532300000000005
8 h after dark	7.6751233333333335	7.48422	7.78148
12 h after dark	7.71206	7.528580000000001	7.88667