condition	mean	min	max
4 h after light	6.03198	6.00173	6.054819999999999
8 h after light	5.927603333333334	5.91244	5.947080000000001
12 h after light	5.9868266666666665	5.75856	6.14577
4 h after dark	6.203526666666667	6.00565	6.44426
8 h after dark	6.045296666666666	5.882219999999999	6.17507
12 h after dark	6.20626	5.95055	6.3375900000000005