condition	mean	min	max
4 h after light	5.077269	3.043924	6.245236
8 h after light	10.097573333333333	6.668489999999999	13.89952
12 h after light	14.001881666666666	7.3405949999999995	18.14779
16 h after light	14.29687	10.49092	19.24265
4 h after dark	5.269232	2.687185	7.353358999999999
8 h after dark	7.689946333333333	1.588307	19.00166