condition	mean	min	max
4 h after light	12.11905	11.1509	13.0872
8 h after light	12.6655	11.7312	13.5998
12 h after light	13.80555	13.7945	13.8166
4 h after dark	16.96015	14.7275	19.1928
8 h after dark	16.72585	16.585	16.8667
12 h after dark	15.908	14.8204	16.9956