condition	mean	min	max
4 h after light	0.0	0.0	0.0
8 h after light	5.85705	0.0	11.7141
12 h after light	2.670555	0.0	5.34111
4 h after dark	4.66839	0.0	9.33678
8 h after dark	6.99778	4.63772	9.35784
12 h after dark	0.0	0.0	0.0