condition	mean	min	max
4 h after light	2.113525	1.80826	2.41879
8 h after light	1.6337285	0.966427	2.30103
12 h after light	2.51914	2.0875	2.95078
4 h after dark	3.041745	2.58734	3.49615
8 h after dark	1.943835	1.80946	2.07821
12 h after dark	2.016385	1.71411	2.31866