condition	mean	min	max
4 h after light	1.55993	1.23145	1.88841
8 h after light	1.3475755	0.971811	1.72334
12 h after light	1.32588	1.32245	1.32931
4 h after dark	2.58051	2.06268	3.09834
8 h after dark	2.94524	2.62012	3.27036
12 h after dark	2.561645	2.38843	2.73486