condition	mean	min	max
4 h after light	3.7	3.7	3.7
8 h after light	19.65	5.5	33.8
12 h after light	12.2	3.9	20.5
4 h after dark	29.2	13.0	45.4
8 h after dark	26.25	21.2	31.3
12 h after dark	7.35	2.8	11.9