condition	mean	min	max
4 h after light	2.69651	2.34029	3.05273
8 h after light	3.75779	3.68076	3.83482
12 h after light	4.16647	3.72748	4.60546
4 h after dark	4.570145	4.50299	4.6373
8 h after dark	5.234445	4.79806	5.67083
12 h after dark	3.448405	3.30636	3.59045