condition	mean	min	max
4 h after light	4.1	4.1	4.1
8 h after light	28.4	17.7	39.1
12 h after light	35.1	29.2	41.0
4 h after dark	15.15	8.5	21.8
8 h after dark	11.0	5.5	16.5
12 h after dark	9.6	5.7	13.5