condition	mean	min	max
4 h after light	41.175431	35.239308	47.111554
8 h after light	51.58962	45.896904	57.282336
12 h after light	48.560557	39.367501	57.753613
4 h after dark	30.488118	26.025418	34.950818
8 h after dark	27.984701	26.117496	29.851906
12 h after dark	29.978212	29.978212	29.978212