condition	mean	min	max
4 h after light	7.51023	7.403639999999999	7.6264899999999995
8 h after light	7.747766666666667	7.56758	7.866560000000001
12 h after light	7.5535733333333335	7.41133	7.63517
4 h after dark	7.688843333333334	7.445	7.823910000000001
8 h after dark	7.6299399999999995	7.45562	7.7242
12 h after dark	7.375583333333333	7.296860000000001	7.43455