condition	mean	min	max
3 h after light	13.2765	12.6851	14.0355
6 h after light	15.065666666666667	14.0433	16.8796
9 h after light	18.0079	16.4954	19.9491
12 h after light	19.21323333333333	17.6149	21.2686
3 h after dark	24.8391	22.1498	27.6932
6 h after dark	20.3516	17.9875	22.5151
9 h after dark	16.181033333333332	14.4391	17.1048
12 h after dark	12.7766	11.0396	14.5421