condition	mean	min	max
4 h after light	13.3	13.3	13.3
8 h after light	17.450000000000003	10.3	24.6
12 h after light	15.9	6.0	25.8
4 h after dark	10.0	4.1	15.9
8 h after dark	12.0	11.4	12.6
12 h after dark	16.95	7.2	26.7