condition	mean	min	max
4 h after light	4.0878733333333335	4.05733	4.107080000000001
8 h after light	4.162583333333333	4.09682	4.28643
12 h after light	4.2171899999999996	4.09432	4.3697099999999995
4 h after dark	4.10754	4.05319	4.20826
8 h after dark	4.06668	3.92646	4.15585
12 h after dark	4.097133333333334	4.01767	4.18295