condition	mean	min	max
4 h after light	19.8623	19.5893	20.1353
8 h after light	16.3412	16.1329	16.5495
12 h after light	18.5572	18.4596	18.6548
4 h after dark	28.38395	24.6498	32.1181
8 h after dark	28.6993	27.9366	29.462
12 h after dark	24.8653	24.8045	24.9261