condition	mean	min	max
4 h after light	13.46385	13.2995	13.6282
8 h after light	11.62965	11.5978	11.6615
12 h after light	14.68825	13.8773	15.4992
4 h after dark	18.90145	17.3568	20.4461
8 h after dark	17.62175	17.3492	17.8943
12 h after dark	17.1388	16.5728	17.7048