condition	mean	min	max
4 h after light	8.1774	6.57953	9.77527
8 h after light	11.138285	9.89427	12.3823
12 h after light	9.492235	9.11161	9.87286
4 h after dark	9.30177	8.26812	10.184
8 h after dark	5.5608	4.45094	7.14414
12 h after dark	7.774236666666667	6.21531	9.91145