condition	mean	min	max
4 h after light	19.2	19.2	19.2
8 h after light	20.3	19.6	21.0
12 h after light	18.65	11.2	26.1
4 h after dark	13.6	11.0	16.2
8 h after dark	14.0	8.0	20.0
12 h after dark	37.85	16.0	59.7