condition	mean	min	max
4 h after light	7.457465	5.23992	9.67501
8 h after light	7.309595	6.96274	7.65645
12 h after light	16.2717	15.4091	17.1343
4 h after dark	27.791166666666665	26.8709	28.8151
8 h after dark	19.4346	14.752	22.5016
12 h after dark	7.449243333333333	7.20177	7.77202