国家 | 频次 | 引用频次 | 篇均引用频次 | 中心性 |
USA | 167 | 5364 | 32.12 | 0.32 |
CHINA | 151 | 2389 | 15.82 | 0.17 |
AUSTRALIA | 78 | 3434 | 44.03 | 0.12 |
SPAIN | 42 | 1527 | 36.36 | 0.07 |
ENGLAND | 41 | 1232 | 30.05 | 0.24 |
BRAZIL | 37 | 389 | 10.51 | 0.03 |
ITALY | 34 | 960 | 28.24 | 0.1 |
GERMANY | 34 | 1072 | 31.53 | 0.25 |
FRANCE | 30 | 1253 | 41.77 | 0.08 |
CANADA | 28 | 730 | 26.07 | 0.06 |