condition	mean	min	max
4 h after light	6.283325	4.61382	7.95283
8 h after light	5.79632	5.03931	6.55333
12 h after light	5.929584999999999	5.06548	6.79369
4 h after dark	4.07924	3.49453	4.98237
8 h after dark	11.965466666666666	11.3772	12.7094
12 h after dark	7.965183333333333	6.01107	9.25532