condition	mean	min	max
4 h after light	8.120066666666666	8.04373	8.23477
8 h after light	8.10637	8.02417	8.231489999999999
12 h after light	7.8923266666666665	7.86065	7.932919999999999
4 h after dark	7.85302	7.774210000000001	7.9403
8 h after dark	7.710236666666667	7.61499	7.86759
12 h after dark	7.557703333333333	7.4184399999999995	7.696680000000001