condition	mean	min	max
4 h after light	13.811587	8.006651	18.60238
8 h after light	6.504851	1.490422	10.297
12 h after light	16.55698	15.123470000000001	19.35876
16 h after light	16.822674	9.158292	24.37596
4 h after dark	13.995610000000001	11.534130000000001	15.74151
8 h after dark	13.603273333333334	10.505989999999999	15.58722