TrendLine is the combined data of European and Southeast Asian samples.
It consists of Age, MeanDNE.Apex, MedianDNE.Apex, IQRDNE.Apex, TotalDNE.TotalPolygonFaces, MedianDNE.Whole, IQRDNE.Whole, MeanDNE.Convex, MeanDNE.Concave, Proportion.DNEunder0.0001, Proportion.DNEover0.6 and Population.