condition	mean	min	max
4 h after light	18.4040465	17.147668	19.660425
8 h after light	18.256707	17.845334	18.66808
12 h after light	18.2321615	17.845334	18.618989
4 h after dark	17.887466500000002	17.845334	17.929599
8 h after dark	16.1258005	16.027352	16.224249
12 h after dark	17.655871	17.655871	17.655871