condition	mean	min	max
4 h after light	12.36695	11.3389	13.395
8 h after light	15.504349999999999	14.6991	16.3096
12 h after light	20.089	19.0206	21.1574
4 h after dark	24.509700000000002	22.642	26.3774
8 h after dark	23.14545	21.5824	24.7085
12 h after dark	15.72785	15.3062	16.1495