condition	mean	min	max
4 h after light	15.638850000000001	15.3404	15.9373
8 h after light	12.0626	10.7668	13.3584
12 h after light	13.0967	12.8077	13.3857
4 h after dark	18.3288	16.6834	19.9742
8 h after dark	22.54665	22.3028	22.7905
12 h after dark	23.814149999999998	22.0964	25.5319