condition	mean	min	max
4 h after light	13.9837	13.8785	14.0889
8 h after light	13.184149999999999	13.1068	13.2615
12 h after light	14.3017	14.2363	14.3671
4 h after dark	18.99765	18.1677	19.8276
8 h after dark	18.90385	18.4054	19.4023
12 h after dark	19.243000000000002	19.0384	19.4476