condition	mean	min	max
0 h after light	19.58695	18.8888	20.2851
4 h after light	2.9347849999999998	2.59171	3.27786
8 h after light	1.4286455	0.876271	1.98102
4 h after dark	3.3133	2.67922	3.94738
8 h after dark	5.79535	5.02023	6.57047
12 h after dark	18.4568	11.5575	25.3561