condition	mean	min	max
4 h after light	5.9432133333333335	5.64751	6.30622
8 h after light	5.65488	5.54053	5.84175
12 h after light	5.399376666666667	5.24794	5.55335
4 h after dark	5.37465	5.20257	5.53155
8 h after dark	5.49387	5.09501	5.77987
12 h after dark	5.63991	5.55806	5.78915