Figure 3
The current number of tree graphs (a) and dual graphs (b) which are newly confirmed according to method of discovery - experimental (solved) natural structures, comparatively analyzed natural structures, all natural structures, and all RNAs (including both national and synthetic structures) in the updated RAG database. Each number is divided by the topological classifications in 2004 (RNA-like and non-RNA-like) which are represented as blue and green, respectively.