condition	mean	min	max
4 h after light	17.3609	16.5657	18.1561
8 h after light	13.9091	13.781	14.0372
12 h after light	13.0583	11.2924	14.8242
4 h after dark	17.8204	16.6322	18.6832
8 h after dark	13.697033333333334	10.8601	18.2615
12 h after dark	16.6773	16.1137	17.7958