condition	mean	min	max
4 h after light	4.954330000000001	4.79777	5.1786900000000005
8 h after light	4.978829999999999	4.86337	5.11752
12 h after light	4.763463333333333	4.610519999999999	4.89513
4 h after dark	4.97081	4.79208	5.08906
8 h after dark	4.886253333333333	4.74413	5.0254900000000005
12 h after dark	4.902956666666666	4.66748	5.156219999999999