condition	mean	min	max
4 h after light	8.1026605	8.001169	8.204152
8 h after light	9.459022000000001	9.27708	9.640964
12 h after light	9.104662	8.493151	9.716173
4 h after dark	9.561179	9.495113	9.627245
8 h after dark	11.064058	10.684692	11.443424
12 h after dark	8.586736	8.586736	8.586736