condition	mean	min	max
4 h after light	16.9	16.9	16.9
8 h after light	32.8	29.1	36.5
12 h after light	18.9	5.3	32.5
4 h after dark	33.0	18.3	47.7
8 h after dark	20.35	3.5	37.2
12 h after dark	3.35	3.2	3.5