condition	mean	min	max
4 h after light	18.48775	16.8887	20.0868
8 h after light	12.8482	12.6913	13.0051
12 h after light	12.9666	10.6367	15.2965
4 h after dark	26.9568	25.6676	28.246
8 h after dark	23.27685	22.4761	24.0776
12 h after dark	25.25045	24.8245	25.6764