condition	mean	min	max
4 h after light	14917.1	14917.1	14917.1
8 h after light	15881.95	13868.4	17895.5
12 h after light	16949.4	16452.6	17446.2
4 h after dark	15495.95	11757.5	19234.4
8 h after dark	14670.35	14049.7	15291.0
12 h after dark	15018.85	12643.0	17394.7