condition	mean	min	max
4 h after light	7.1258099999999995	7.04329	7.20833
8 h after light	6.2923849999999995	6.20961	6.37516
12 h after light	9.357745000000001	8.89319	9.8223
4 h after dark	11.38825	10.8948	11.8817
8 h after dark	10.86015	10.5114	11.2089
12 h after dark	9.5699	9.53251	9.60729