condition	mean	min	max
4 h after light	7.712456666666666	7.6725	7.785839999999999
8 h after light	7.7137633333333335	7.63	7.86821
12 h after light	7.64551	7.56555	7.722689999999999
4 h after dark	7.80417	7.69635	7.9462
8 h after dark	7.59044	7.51236	7.66067
12 h after dark	7.59964	7.5251600000000005	7.6685