condition	mean	min	max
4 h after light	0.8	0.8	0.8
8 h after light	4.0	1.9	6.1
12 h after light	4.0	3.9	4.1
4 h after dark	3.9	3.0	4.8
8 h after dark	34.55	22.4	46.7
12 h after dark	10.0	2.7	17.3