condition	mean	min	max
4 h after light	5.955493333333333	3.671762	8.657850999999999
8 h after light	14.552277333333334	6.929652000000001	18.64469
12 h after light	15.514443333333332	10.68145	18.27504
16 h after light	10.32555	9.05325	11.40714
4 h after dark	19.83203333333333	17.374029999999998	22.25939
8 h after dark	9.944982333333334	7.963507000000001	11.438460000000001