condition	mean	min	max
4 h after light	3.7437300000000002	3.69466	3.76833
8 h after light	3.73872	3.6986199999999996	3.8117900000000002
12 h after light	3.790996666666667	3.73268	3.82228
4 h after dark	3.8531266666666664	3.74687	4.006419999999999
8 h after dark	3.7833	3.76813	3.7980699999999996
12 h after dark	3.808203333333333	3.7738699999999996	3.8476199999999996