condition	mean	min	max
4 h after light	5.165026666666667	5.0343800000000005	5.24381
8 h after light	5.32362	5.2073599999999995	5.5461
12 h after light	5.32467	5.12178	5.56168
4 h after dark	5.184216666666667	5.12649	5.23361
8 h after dark	5.261253333333333	5.15076	5.34941
12 h after dark	5.17527	5.05605	5.2957