condition	mean	min	max
0 h after light	9.064699999999998	8.87122	9.25818
4 h after light	4.70604	4.42171	4.99037
8 h after light	4.27013	4.0084	4.53186
4 h after dark	5.58586	5.1302	6.04152
8 h after dark	6.11934	5.98606	6.25262
12 h after dark	7.559505	5.80948	9.30953