condition	mean	min	max
4 h after light	11.9	11.9	11.9
8 h after light	16.0	14.7	17.3
12 h after light	21.799999999999997	19.9	23.7
4 h after dark	25.549999999999997	8.2	42.9
8 h after dark	39.150000000000006	16.1	62.2
12 h after dark	12.7	11.4	14.0