condition	mean	min	max
4 h after light	8.817865000000001	8.78393	8.8518
8 h after light	7.1042749999999995	6.87925	7.3293
12 h after light	3.711075	3.49241	3.92974
4 h after dark	5.59917	4.65857	6.43455
8 h after dark	7.7400633333333335	6.44872	9.47666
12 h after dark	11.219903333333333	8.39481	12.9562