condition	mean	min	max
0 h after light	9.39546	9.15337	9.63755
4 h after light	14.35145	12.5241	16.1788
8 h after light	12.4255	11.9205	12.9305
4 h after dark	19.7607	19.432	20.0894
8 h after dark	15.103	15.0278	15.1782
12 h after dark	13.68695	12.5923	14.7816