condition	mean	min	max
4 h after light	12.14002	7.34446	16.1389
8 h after light	10.72432	3.52126	17.7417
12 h after light	12.823173333333333	7.53442	18.6096
4 h after dark	20.562033333333332	15.0984	24.6898
8 h after dark	15.507299999999999	11.561	17.9088
12 h after dark	13.388366666666666	11.3214	14.4862