condition	mean	min	max
0 h after light	9.26286	9.12123	9.40449
4 h after light	56.56425	39.2154	73.9131
8 h after light	12.8414	10.134	15.5488
4 h after dark	4.15953	2.23556	6.0835
8 h after dark	23.7682	20.9433	26.5931
12 h after dark	16.566	13.9382	19.1938