condition	mean	min	max
4 h after light	13106.7	13106.7	13106.7
8 h after light	15533.65	14252.8	16814.5
12 h after light	14743.8	13337.2	16150.4
4 h after dark	15421.5	13427.0	17416.0
8 h after dark	14997.25	14227.2	15767.3
12 h after dark	13092.35	12607.6	13577.1