condition	mean	min	max
4 h after light	13.63275	13.1242	14.1413
8 h after light	11.6391	11.4026	11.8756
12 h after light	10.0012	9.6489	10.3535
4 h after dark	19.5141	17.9648	21.0634
8 h after dark	19.05675	17.98	20.1335
12 h after dark	19.2849	18.0171	20.5527