condition	mean	min	max
3 h after light	9.405	8.12931	10.1107
6 h after light	14.875163333333333	9.17439	18.8485
9 h after light	21.4681	21.2784	21.5954
12 h after light	17.8777	16.8557	18.4088
3 h after dark	11.436313333333333	9.26984	14.7425
6 h after dark	9.62477	7.28057	13.3656
9 h after dark	5.68693	3.52518	9.16084
12 h after dark	3.9610233333333333	3.56039	4.381