First Table shows the sets of top three contributors for each community, while the second Table shows the bottom three contributors.

Values represent the contributions of original measures to the explained variances. Rankings refer to averaged values along each sub-period: 2001-06, 2007-09 and 2010-13. Community C0 refers to the Mixed community, while C1, C2 and C3 stand for US, JP, and EU+US clusters, respectively.各数值代表原始指标对可解释方差的贡献度。排名指代各子时段（2001-06年、2007-09年及2010-13年）的平均取值。聚类社区C0指代混合社区，而C1、C2、C3分别对应美国（US）、日本（JP）以及欧盟+美国（EU+US）聚类簇。