condition	mean	min	max
4 h after light	16.78125	16.0061	17.5564
8 h after light	10.8045	10.0754	11.5336
12 h after light	5.972925	5.53178	6.41407
4 h after dark	8.650513333333334	7.99225	8.99183
8 h after dark	8.577853333333334	7.96117	9.16075
12 h after dark	17.0165	16.0927	18.8006