Fig. 3
Spatial distribution of outdegree, indegree and node degree between 2000 and 2020. Maps are created using ArcGIS Pro software (version 3.0.2).
Fig. 3 | Scientific Data
Spatial distribution of outdegree, indegree and node degree between 2000 and 2020. Maps are created using ArcGIS Pro software (version 3.0.2).
